Hinge cap

Abstract

To provide a hinge cap capable of opening an upper lid while separating a sealing member from a cap body only by lifting up a knob part of the upper lid during initial lid-opening.SOLUTION: A hinge cap comprises a cap body A attached to a mouth part 1 of a container body D, and an upper lid B continuously provided to the cap body A via a hinge C. The cap body A comprises an attachment part 5 attached to the mouth part 1 of the container body D, and a sealing member E continuously and separably provided on an opposite side of the hinge C of the attachment part 5. The upper lid B comprises a top wall 20; a side peripheral wall 21 vertically arranged from a peripheral edge of the top wall 20; a knob part 27 protruded from the opposite side of the hinge C of the side peripheral wall 21; and a thin wall part 21b that is formed above the knob part 27 of the side peripheral wall 21, and deforms the knob part 27 from a base part when the knob part 27 is lifted up. The knob part 27 is engaged with the sealing member E when a lid is closed, and comprises a sealing engagement part 28 for separating the sealing member E from the cap body A when the lid is opened.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a hinge cap, and more particularly to a hinge cap having a tamper-evident mechanism. [Background technology]

[0002] In various types of containers, a hinge cap is attached to the mouth of the container body containing the contents, where the cap body and the top lid are connected via a hinge.To prevent the contents from being illegally extracted or refilled, a sealing member is detachably connected to the cap body, and when the container is unopened, the sealing member engages with the top lid to maintain the closed state, and the presence or absence of the sealing member allows visual confirmation of the opened state (see, for example, Patent Document 1).Hinge caps like these have been known for some time (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-214241 Summary of the Invention [Problem to be solved by the invention]

[0004] However, with the hinge cap described in Patent Document 1 above, when opening the hinge cap for the first time, two operations are required: first, the sealing member must be separated from the cap body, then the finger must be placed in the finger-hook recess on the top lid, and the top lid must be pushed up using the hinge as a fulcrum to open it, which creates the problem of being time-consuming to open.

[0005] The present invention aims to solve the above problem by providing a hinge cap that allows unauthorized opening to be visually confirmed by the state of the sealing member that is rupturably connected to the cap body, and that allows the sealing member to be separated from the cap body and the top lid to be opened simply by lifting the knob on the top lid when first opening it. [Means for solving the problem]

[0006] In order to solve the above problems, the present invention provides a hinge cap comprising a cap body attached to the mouth of a container body and a top lid connected to the cap body via a hinge, wherein the cap body has an attachment part attached to the mouth of the container body and a closure member detachably connected to the attachment part on the opposite side of the hinge, and the top lid has a top wall, side walls hanging down from the periphery of the top wall, a tab part protruding from the opposite side of the hinge of the side walls, and a thin wall part formed above the tab part of the side walls and which deforms the tab part from its base when the tab part is lifted, and the tab part has a closure locking part which engages with the closure member when the lid is closed and which detaches the closure member from the cap body when the lid is opened. The sealing member has a sealing wall formed in the circumferential direction at a predetermined distance from the outer peripheral surface of the mounting portion, and the sealing wall has side walls facing the mounting portion at both ends, and at least one of the side walls has a breakable weakened portion connected to the mounting portion, and the sealing engagement portion has an insertion wall portion hanging from the knob portion and a fitting portion formed at the bottom of the insertion wall portion and engaging with the lower end surface of the sealing wall, and is inserted from above into the space formed between the sealing wall and the outer peripheral surface of the mounting portion when the lid is closed. The present invention employs a configuration characterized by the above.

[0008] As a specific embodiment of the hinge cap of the present invention, the mounting portion comprises a lid engagement portion that engages with the top lid and an outer wall portion that hangs down from the outer edge of the lid engagement portion, the sealing member is connected to the outer wall portion via a breakable weakened portion, and the top lid has an engagement recess at the lower inner circumferential end of the side wall that engages with the lid engagement portion, and the top lid also has a configuration in which the top lid has an outer circumferential recess on the outer periphery opposite the hinge of the side wall that extends circumferentially from the center to predetermined positions on both sides and is recessed from above, leaving only the lower end.

[0009] In another embodiment of the sealing member of the present invention, the sealing member is configured to have a covering portion that covers the tab, and the covering portion is configured to have a bottom wall portion that covers the underside of the tab outside the sealing engagement portion, and a side wall portion that covers the outer surface of the tab. Furthermore, in another specific embodiment of the hinge cap of the present invention, the knob portion has a deformed recess formed in the base portion from the upper surface. [Effects of the Invention]

[0010] By adopting the above-described configuration, the hinge cap of the present invention allows the sealing member to be separated from the cap body and the top lid to be opened at the same time by simply lifting the handle when the hinge cap is first opened, and any tampering can be visually confirmed, so opening the top lid is easy.

[0011] Furthermore, by providing a covering portion on the sealing member that covers the knob, it is possible to prevent unauthorized opening by pushing up the knob before opening, and by lifting the covering portion from below, the knob is pushed up, not only making it easy to open the cap, but also by lifting the covering portion, which is part of the sealing member, the sealing member can be reliably separated from the cap body. [Brief explanation of the drawings]

[0012] [Figure 1] 1A and 1B are explanatory views showing a container equipped with a hinge cap according to a first embodiment of the present invention, in which (a) is a cross-sectional side view and (b) is a side view. [Figure 2] 1A and 1B are explanatory views showing the hinge cap according to the first embodiment of the present invention when opened, in which (a) is a top view and (b) is a side cross-sectional view. [Figure 3] 1A and 1B are explanatory views showing the main parts when a container equipped with a hinge cap according to a first embodiment of the present invention is first opened, where FIG. 1A is a side cross-sectional view and FIG. 1B is a side view. [Figure 4] 10A and 10B are explanatory views showing a container equipped with a hinge cap according to a second embodiment of the present invention, in which (a) is a side cross-sectional view and (b) is a front view. [Figure 5] 10A and 10B are explanatory views showing a hinge cap according to a second embodiment of the present invention when opened, in which (a) is a top view and (b) is a side cross-sectional view. [Figure 6] An explanatory diagram showing the main parts when opening a container equipped with a hinge cap according to the second embodiment of the present invention, where (a) is a cross-sectional side view when the lid is first opened, and (b) is a side view during opening. BEST MODE FOR CARRYING OUT THE INVENTION

[0013] Next, the hinge cap of the present invention will be described with reference to the drawings by way of examples. In the following description, in FIG. 1, the upward direction is referred to as "upper", the downward direction is referred to as "lower", the rightward direction is referred to as "rear side" (hinge side), and the leftward direction is referred to as "front side" (opposite the hinge). Example 1

[0014] In Figures 1 and 2, A is the cap body that is fitted into the container body D, B is the top lid connected to the cap body A via a hinge C, and E is a sealing member that is formed detachably on the front side of the cap body A and engages with the top lid B.

[0015] As shown in FIG. 1, the container body D has a mouth portion 1, and a fitting protrusion 2 is formed on the outer periphery of the mouth portion 1. The cap body A comprises an attachment portion 5 that is attached to the mouth portion 1 of the container body D, a base wall 6 that extends inward from the upper end of the inner edge of the attachment portion 5 and seals the opening of the mouth portion 1, a pouring tube 7 that stands upright around the pouring outlet that penetrates the base wall 6, and a sealing member E that is detachably connected to the front side of the attachment portion 5.

[0016] The base wall 6 is composed of a lower wall portion 6a extending from the upper end of the inner edge of the mounting portion 5, and an upper wall portion 6c formed one step above the inner end of the lower wall portion 6a via a step portion 6b, and having a pouring tube 7 connected to its inner end. In this embodiment, the dispensing tube 7 is provided at a position offset from the center of the cap body A toward the front side, but the dispensing tube 7 may be located at the center.

[0017] The mounting portion 5 is connected to the outer edge of the base wall 6 and is composed of an annular lid engagement portion 8 that engages with the upper lid B, an inner tube 9 that hangs down from the inner peripheral edge of the lid engagement portion 8, and an outer peripheral wall portion 10 that hangs down from the outer peripheral edge of the lid engagement portion 8 and has a hinge C connected to part of its upper end. The outer peripheral wall 10 has a sealing member E connected to the upper outer periphery on the front side within a predetermined range, and an engaging protrusion 11 that engages with the fitting protrusion 2 of the mouth 1 of the container body D is provided on the lower inner periphery.

[0018] In this embodiment, as shown in Figures 1(b) and 2(a), a peripheral notch 13 that is approximately V-shaped in plan view is cut from above into the outer surface of the outer wall portion 10 near either the left or right side of the hinge C, and a slit groove 14 is recessed from above so as to extend within a predetermined range in the circumferential direction on the back side (hinge C side) starting from a position separated by a thin-walled portion at the top of the inner peripheral side of the peripheral notch 13. Therefore, when the hinge cap is disposed of by pulling down the top lid B via the hinge C, the outer peripheral cut portion 13 becomes a vertical tear line and the slit groove 14 becomes a circumferential tear line, and the outer peripheral wall portion 10 is broken circumferentially starting from the outer peripheral cut portion 13, and the engagement between the engaging protrusion 11 of the broken portion and the mouth portion 1 of the container body D is released, allowing the hinge cap to be easily separated from the container body D and discarded separately.

[0019] As shown in Figures 1 and 2, the upper lid B comprises a top wall 20, a side wall 21 that hangs down from the periphery of the top wall 20 and has a hinge C connected to a predetermined position at the lower end of its outer periphery, a sealing tube 22 that hangs down from the underside of the top wall 20 and whose outer periphery is inserted into the inner periphery of the dispensing tube 7 of the cap body A when the lid is closed, and a middle tube wall 23 that hangs down outside the sealing tube 22 on the underside of the top wall 20 and whose lower end surface is close to or abuts the inner edge of the lower wall portion 6a of the base wall 6. The inner circumferential lower end of the side peripheral wall 21 is provided with an engagement recess 25 which is enlarged in diameter and engages with the upper surface and outer periphery of the lid engagement portion 8 of the cap body A.

[0020] An outer periphery on the front side of the side peripheral wall 21 is formed with an outer periphery recess 26 that extends circumferentially from the center to a predetermined range on both sides and is recessed from above, leaving only the lower end portion 21a, and a knob portion 27 protrudes circumferentially from the lower end portion 21a. The portion of the side wall 21 where the outer peripheral recess 26 is formed has a thinner wall thickness than the wall thickness of other portions, and in particular, the portion above the knob portion 27 where the engagement recess 25 recessed from the inner peripheral side of the side wall 21 is located forms the thinnest wall portion 21b. In addition, the peripheral side wall 21 does not have to have the peripheral recess 26 formed thereon, and the peripheral side wall 21 above the knob portion 27 may be formed thinly so that it is thick enough to deform from the base of the knob portion 27 when the knob portion 27 is lifted.

[0021] The knob 27 is provided with a closure locking portion 28 which engages with a closure member E (described later) when set and separates the closure member E from the cap body A when the cap is opened. The sealing engagement portion 28 is suspended from the underside of the gripping portion 27, and is provided with an insertion wall portion 29 formed in an arc shape so that its inner surface covers part of the outer periphery of the outer wall portion 10 of the cap body A when set, and a fitting portion 30 formed at the bottom of the insertion wall portion 29 and having a wedge-shaped cross section. The fitting portion 30 has an inclined lower surface 30a extending diagonally upward and outward from the lower end, an outer surface 30b extending upward from the inclined lower surface 30a, and a stepped upper surface 30c extending inward from the upper end of the outer surface 30b, and engages with the sealing member E when set.

[0022] The sealing member E has a sealing wall 35 formed circumferentially at a predetermined distance from the outer peripheral surface of the outer peripheral wall portion 10, which is the front side of the mounting portion 5 of the cap body A, and the sealing engagement portion 28 is inserted from above into the space a formed between the sealing wall 35 and the outer peripheral surface of the outer peripheral wall portion 10 when the hinge cap is set (closed). The sealing wall 35 has side walls 37 at both ends facing the outer peripheral wall portion 10, and the side walls 37 are connected to the outer peripheral wall portion 10 via breakable weakened portions 36. The sealing wall 35 is formed so that the circumferential width of its inner surface is slightly larger than the circumferential width of the insertion wall portion 29 of the sealing engagement portion 28, and is also formed so that in the vertical direction it has a length that engages with the stepped upper surface 30c of the fitting portion 30 of the sealing engagement portion 28 when set from the upper end of the outer wall portion 10.

[0023] Next, the manner of use and the effects of this embodiment will be described. The hinge cap of this embodiment is integrally molded in the open state shown in Figure 2, and when set, the top cover B is rotated in the closing direction relative to the cap body A via the hinge C, and the engagement recess 25 on the side wall 21 of the top cover B is engaged with the cover engagement portion 8 of the cap body A, thereby closing the hinge cap.

[0024] When set, the sealing locking portion 28 hanging down from the knob portion 27 of the upper cover B is inserted from above into the space a of the sealing member E, and the inclined lower surface 30a formed on the fitting portion 30 of the sealing locking portion 28 abuts against the inner surface of the sealing wall 35, and the fitting portion 30 slightly pushes the sealing wall 35 apart while the insertion wall portion 29 is inserted into the space a. In this embodiment, a slit groove 14 is recessed from the upper end surface of the outer wall portion 10, and the thickness of the upper wall of the outer wall portion 10 is thinner than that of the lower portion, so that the cap body A before being attached to the container body D is prone to slight deformation when the fitting portion 30 passes through the space a.

[0025] Finally, as shown in Figure 1, the inner surface of the insertion wall portion 29 of the closure locking portion 28 is close to the outer peripheral surface of the outer peripheral wall portion 10 of the cap body A, the outer surface of the insertion wall portion 29 abuts or is close to the inner surface of the closure wall 35, and the stepped upper surface 30c of the fitting portion 30 engages with the lower end surface of the closure wall 35, thereby maintaining the closed state.

[0026] The closed hinge cap is attached to the mouth 1 of the container body D filled with the contents by means of a stopper or the like. In a container equipped with the hinge cap of this embodiment, when the top lid B is capped from above or dropped with the top lid B facing downwards, the lower end of the middle tube wall 23 of the top lid B abuts against the inner edge of the lower wall portion 6a of the base wall 6 of the cap body A, so that the middle tube wall 23 prevents the top lid B from being pushed against the cap body A by the impact force from the top lid B, causing the side peripheral wall 21 to shift outward or the sealing tube 22 to be pushed into the dispensing tube 7, thereby maintaining stable closure and sealing of the hinge cap.

[0027] When using a container equipped with the hinge cap of this embodiment for the first time, first, the knob 27 of the top cover B is lifted upward. When knob 27 is lifted, thin wall portion 21b of side wall 21 is thinner than the wall thickness of other parts of side wall 21, so that thin wall portion 21b is easily deformed from the base side of knob 27, and knob 27 is lifted with thin wall portion 21b as a fulcrum, as shown in Figure 3.

[0028] At this time, the sealing engagement portion 28 hanging down from the underside of the gripping portion 27 is also lifted so that the lower fitting portion 30 faces outward and upward, and accordingly, the sealing wall 35 of the sealing member E abutting against the outer surface of the insertion wall portion 29 is also lifted so that the lower portion faces outward and upward. At this time, the stepped upper surface 30c of the fitting portion 30 abuts against and catches the lower end surface of the closure wall 35, so that the engagement between the closure wall 35 and the insertion wall portion 29 does not come off. Furthermore, when the sealing wall 35 is lifted, the side walls 37 on both sides connected to the sealing wall 35 are also lifted in conjunction, and force is applied to the weakened portions 36 connected to the outer wall portion 10 of the cap body A, causing both weakened portions 36 to break and separating the sealing member E from the cap body A.

[0029] After the sealing member E is separated, the handle 27 can be easily lifted, and first the engagement between the engagement recess 25 of the side wall 21 near the thin wall portion 21b and the lid engagement portion 8 is released, and then when the top lid B is lifted, the engagement between the engagement recess 25 of the other side wall 21 and the lid engagement portion 8 is released from the thin wall portion 21b side, and the top lid B is opened.

[0030] The hinge cap of this embodiment has a thin wall portion 21b on the side peripheral wall 21 of the top lid B, and when the knob portion 27 is lifted to open the lid, the wall in that portion deforms, so that the lid can be opened easily and with little force, even if the engagement between the engagement recess 25 of the top lid B and the lid engagement portion 8 of the cap body A is strong.

[0031] As described above, when the hinged cap of this embodiment is first opened, the sealing member E can be separated from the cap body A at the same time as the top cover B is opened by simply lifting the knob portion 27, and by visually checking whether the sealing member E is present or not, unauthorized opening can be prevented.

[0032] In this embodiment, the sealing wall 35 of the sealing member E is connected to the cap body A via weakened portions 36 on both side walls 37, and when the hinge cap is first opened, both weakened portions 36 break, separating the sealing member E from the cap body A. However, one of the side walls 37 on both sides may have a breakable weakened portion 36, and the other may be connected to the outer wall portion 10 in an unbreakable state. In this case, when the cap is first opened, one end of the sealing member E remains on the outer wall portion 10 of the cap body A, but the weakened portion 36 on one side is broken and the other end of the sealing member E is separated, so this state can be visually confirmed to confirm tampering. Furthermore, even if weakened portions 36 are provided on both side walls 37, it may be the case that only one of the weakened portions 36 breaks when the lid is first opened, but at least one of the two end portions of the sealing member E will be cut off, which can be visually confirmed to prevent tampering. Example 2

[0033] Next, a second embodiment in which the configurations of the sealing member and the cap body in the first embodiment are changed will be described. In the following, the same components as those in the first embodiment are given the same reference numerals, and only different components are given different reference numerals, and the differences will be mainly explained.

[0034] In Figures 4 and 5, Aa is a cap body that is fitted into the container body Da, Ba is an upper lid connected to the cap body Aa via a hinge C, and Ea is a sealing member that is formed detachably on the front side of the cap body Aa and engages with the upper lid Ba.

[0035] As shown in FIG. 4, a fitting protrusion 41 is formed on the outer periphery of the mouth 40 of the container body Da, and a neck ring 42 is formed below the fitting protrusion 41.

[0036] The cap body Aa comprises an attachment portion 45 that is attached to the mouth portion 40 of the container body Da, a base wall 46 that extends inward from the upper end of the inner edge of the attachment portion 45 and seals the opening of the mouth portion 40, a pouring tube 47 that stands upright around the pouring outlet that penetrates the base wall 46, and a sealing member Ea that is detachably connected to the front side of the attachment portion 45. The mounting portion 45 is connected to the outer edge of the base wall 46 and is composed of an annular lid engagement portion 48 that engages with the upper lid Ba, an inner tube 49 that hangs down from the inner peripheral edge of the lid engagement portion 48, and an outer peripheral wall portion 50 that hangs down from the outer peripheral edge of the lid engagement portion 48 and has a hinge C connected to part of its upper end.

[0037] The outer wall portion 50 has a sealing member Ea connected to the upper outer periphery on the front side within a predetermined range, an engaging protrusion 51 provided at the lower inner periphery that engages with the mating protrusion 41 of the mouth portion 40 of the container body Da, and a thin-walled wall 52 vertically attached to the lower end. The thin wall 52 is formed at a height such that when the cap body Aa is attached to the container body Da, the lower end of the thin wall 52 abuts or is close to the upper surface of the neck ring 42 of the container body Da, so that no gap is formed between the thin wall 52 and the upper surface.Furthermore, a plurality of thinnest portions 53 formed thinner than the thickness of the thin wall 52 are arranged at predetermined intervals around the circumference of the thin wall 52.

[0038] As shown in Figures 4 and 5, the upper lid Ba comprises a top wall 55, a side peripheral wall 56 hanging down from the periphery of the top wall 55 and having a hinge C connected to a predetermined position at the lower end of the outer periphery, a sealing tube 57 hanging down from the underside of the top wall 55 and whose outer periphery is inserted into the inner periphery of the dispensing tube 47 of the cap body Aa when the lid is closed, and a middle tube wall 58 hanging down outside the sealing tube 57 on the underside of the top wall 55 and whose lower end surface is close to or abuts the upper surface of the base wall 46. The inner circumferential lower end of the side peripheral wall 56 is provided with an engagement recess 59 that is enlarged in diameter and engages with the upper surface and outer periphery of the lid engagement portion 48 of the cap body Aa.

[0039] A peripheral recess 60 is formed on the outer periphery of the front side of the side peripheral wall 56, extending circumferentially from the center to a predetermined range on both sides, and a knob 61 protrudes from the outer lower end of the peripheral recess 60. The knob 61 has a deformed recess 62 recessed from the top surface of the base, and this portion of the knob 61 forms a thin-walled deformed portion 61a. The portion of the side wall 56 where the outer peripheral recess 60 is formed has a thinner wall thickness than the wall thickness of other portions, and in particular, the portion where the engagement recess 59 recessed from the inner peripheral side of the side wall 56 is located forms the thinnest wall portion 56a. A seal engaging portion 28 is provided on the underside of the knob portion 61. The seal engaging portion 28 engages with a seal member Ea (described later) when the cap is set, and separates the seal member Ea from the cap body Aa when the cap is opened.

[0040] The sealing member Ea has a sealing wall 65 formed circumferentially at a predetermined distance from the outer peripheral surface of the outer peripheral wall portion 50, which is the front side of the mounting portion 45 of the cap body Aa, and the sealing engagement portion 28 of the knob portion 61 is inserted from above into the space a formed between the sealing wall 65 and the outer peripheral surface of the outer peripheral wall portion 50 when the hinge cap is set (closed). Furthermore, the sealing member Ea is provided with a covering portion 66 that is connected to the upper end of the outer periphery of the sealing wall 65 and covers the tab portion 61. The covering portion 66 is composed of a bottom wall portion 67 that covers the outer lower surface of the knob portion 61 from the sealing engagement portion 28, and a side wall portion 68 that stands on the outer edge of the bottom wall portion 67 and covers the outer surface of the knob portion 61. The sealing wall 65 has side walls 70 at both ends facing the outer wall portion 50, and as shown in Figure 5(a), the side walls 70 are each connected to the outer wall portion 50 via a breakable weakened portion 69.

[0041] Next, the manner of use and the effects of this embodiment will be described. In the hinge cap of this embodiment, when the hinge cap is closed, the sealing engagement portion 28 of the knob portion 61 of the upper cover Ba is inserted from above into the space a of the sealing member Ea and engages with the sealing wall 65, and the covering portion 66 covers all but the top surface of the knob portion 61. The closed hinge cap is attached to the mouth portion 40 of the container body Da filled with the contents by plugging or the like.

[0042] The hinge cap of this embodiment covers all but the upper surface of the gripping portion 61 with the covering portion 66 of the sealing member Ea, thereby preventing the lower surface and tip of the gripping portion 61 from hitting the floor or the like and causing the lid to open when the container is dropped.

[0043] After a container fitted with the hinge cap of this embodiment is capped, the thin wall 52 provided at the lower end of the outer wall portion 50 of the cap body Aa prevents a gap from forming between the cap and the upper surface of the neck ring 42 of the container body Da. Therefore, if an attempt is made to forcibly remove the hinge cap from the container body Da using metal fittings or the like, the thinnest part 53 of the thin wall 52 of the outer wall portion 50 will not be able to withstand deformation and will break, leaving a mark, thereby preventing tampering or other unauthorized opening.

[0044] When using a container equipped with the hinge cap of this embodiment for the first time, first, place a finger or the like on the underside of the bottom wall portion 67 of the covering portion 66 of the closure member Ea and lift the covering portion 66 upward. When the bottom wall portion 67 is lifted, the knob portion 61 of the top cover Ba that abuts on the top surface is also lifted from below. The knob 61 is easily deformed by the thin-walled deforming portion 61a formed by the deformation recess 62 recessed in the base, so as shown in Figure 6(a), the thin-walled deforming portion 61a serves as a fulcrum for lifting the knob 61, and the tip side of the knob 61 is lifted upward together with the covering portion 66.

[0045] When the gripping portion 61 is lifted upward from the tip side together with the covering portion 66, the adjacent sealing engagement portion 28 is also lifted so that its lower portion faces outward and upward, and accordingly, the sealing wall 65 of the sealing member Ea that engages with the sealing engagement portion 28 is also lifted so that its lower portion faces outward and upward. Furthermore, when the sealing wall 65 is lifted, the side walls 70 on both sides connected to the sealing wall 65 are also lifted in conjunction, and the weakened portion 69 connected to the outer wall portion 50 of the cap main body Aa is broken from below, and the sealing member Ea is separated from the cap main body Aa. The sealing member Ea is lifted so that the lower part faces outward and upward as a whole by lifting the covering part 66 and lifting the sealing wall 65 by the sealing engagement part 28, and is separated from the outer peripheral wall part 50 of the cap body Aa, so that the sealing member Ea can be reliably separated from the cap body Aa.

[0046] After the sealing member Ea is separated, when the gripping portion 61 is further lifted together with the covering portion 66, the thin wall portion 56a of the side wall 56 also deforms and is lifted using the thin wall portion 56a as a fulcrum, first disengaging the engagement between the engaging recess 59 of the side wall 56 near the thin wall portion 56a and the lid engaging portion 48, and then disengaging the engagement recess 59 of the other side wall 56 from the lid engaging portion 48 from the thin wall portion 56a side, and the top lid Ba is opened as shown in Figure 6(b). The thin wall portion 56a of the side peripheral wall 56 of the upper lid Ba also deforms when the lid is opened, so that even if the engagement recess 59 of the upper lid Ba and the lid engagement portion 48 of the cap body Aa are tightly fitted together, the lid can be opened easily and with little force. Furthermore, after the lid is opened, the closure member Ea is separated from the cap body Aa, and can therefore be easily removed from the knob portion 61 and the closure locking portion 28 of the top lid Ba.

[0047] As described above, when the hinge cap of this embodiment is first opened, the covering portion 66 of the sealing member Ea is lifted, first separating the sealing member Ea from the cap body Aa, and then the top cover Ba is opened.Therefore, after opening the cover, the sealing member Ea is always separated, and by visually checking whether the sealing member Ea is present or not, tampering can be prevented. [Industrial Applicability]

[0048] The present invention provides a knob on the front side of the side wall of the top lid of the hinge cap, provides a thin wall portion on a portion of the side wall above the knob, and further provides a detachable sealing member on the front side of the mounting portion of the cap body.By doing this, when the hinge cap is first opened, the sealing member can be detached from the cap body and the top lid can be opened at the same time by simply lifting the knob or the sealing member covering the knob, and tampering can be visually detected, so the hinge cap can be widely used as a hinge cap for various containers. [Explanation of symbols]

[0049] A, Aa Cap body B, Ba top cover C hinge D, Da container body E, Ea sealing material a space 1, 40 mouth part 2, 41 mating protrusion 5, 45 Mounting part 6, 46 base wall 6a Lower wall part 6b Stepped section 6c Upper wall 7, 47 Pour tube 8, 48 Lid engaging part 9, 49 Inner cylinder 10, 50 Outer wall 11, 51 Engagement protrusion 13 Peripheral notch 14 Slit groove 20, 55 Top wall 21, 56 Side walls 21a Lower end 21b, 56a Thin wall section 22, 57 Closed envelope 23, 58 Middle cylinder wall 25, 59 Engagement recess 26, 60 Outer periphery recess 27, 61 Knob 28 Seal latch 29 Insertion wall 30 Fitting part 30a Slanted bottom surface 30b External surface 30c top surface 35, 65 Sealing wall 36, 69 Weakened part 37, 70 side wall 42 Neck Ring 52 Thin wall 53 Thinnest part 61a Thin-walled deformation part 62 Deformed recess 66 Covering part 67 Bottom wall 68 Side wall

Claims

1. A hinge cap comprising a cap body attached to the mouth of a container body and an upper lid connected to the cap body via a hinge, The cap body includes an attachment portion that is attached to the opening of the container body, and a closure member that is detachably connected to the attachment portion on the opposite side of the hinge, The upper cover has a top wall, side walls extending downward from the periphery of the top wall, a knob protruding from the side wall opposite the hinge, and a thin wall formed above the knob on the side wall, which deforms the knob from its base when the knob is lifted; The knob has a closure locking portion that engages with the closure member when the lid is closed and separates the closure member from the cap body when the lid is opened; The sealing member has a sealing wall formed in the circumferential direction at a predetermined distance from the outer peripheral surface of the mounting portion, The sealing wall has side walls at both ends facing the mounting portion, the side wall has at least one breakable weakened portion connected to the mounting portion; The closure locking portion comprises an insertion wall portion that hangs down from the handle portion and a fitting portion that is formed at the bottom of the insertion wall portion and engages with the lower end surface of the closure wall, and is inserted from above into the space formed between the closure wall and the outer peripheral surface of the mounting portion when the lid is closed.

2. The mounting portion comprises a lid engaging portion that engages with the upper lid and an outer peripheral wall portion that hangs down from the outer peripheral edge of the lid engaging portion; The sealing member is connected to the outer peripheral wall portion via a breakable weakened portion, 2. The hinge cap according to claim 1, wherein the upper cover has an engaging recess at the lower end of the inner periphery of the side peripheral wall, the engaging recess being engaged with the cover engaging portion.

3. A hinge cap as described in claim 1 or 2, characterized in that the upper cover has an outer peripheral recess on the outer periphery opposite the hinge on the side peripheral wall, extending circumferentially from the center to predetermined positions on both sides, and recessed from above, leaving only the lower end.

4. A hinge cap as described in any one of claims 1 to 3, characterized in that the sealing member has a covering portion that covers the gripping portion.

5. A hinge cap as described in Claim 4, characterized in that the covering portion has a bottom wall portion covering the outer underside of the sealing engagement portion of the knob portion, and a side wall portion covering the outer surface of the knob portion.

6. A hinge cap as described in any one of claims 1 to 5, characterized in that the gripping portion has a deformed recess recessed into the base from the top surface.

Images