Hinge cap

Abstract

To provide a hinged cap that can easily seal discharge ports regardless of their shape or number. [Solution] A hinged cap comprising a cap body B attached to the mouth 1 of a container A, and a lid D connected to the cap body B via a hinge C, wherein the cap body B comprises a partition 5 that seals the opening of the mouth 1 of the container A, a discharge port 5a that penetrates the partition 5, and an opening projection 6a that protrudes upward from the partition 5 along the outer edge of the discharge port 5a, and the lid D comprises a top wall 25 facing the partition 5, and an elastically deformable elastic sealing member E attached to the back surface of the top wall 25, wherein the elastic sealing member E contacts the opening projection 6a of the discharge port 5a when the lid is closed and seals the discharge port 5a by elastically deforming.

Description

Technical Field

[0001] The present invention relates to a hinge cap attached to the mouth of a container, and more particularly to a hinge cap that can seal the discharge port regardless of the shape and number of the discharge ports.

Background Art

[0002] A hinge cap includes a cap body attached to the mouth of a container and a lid body that is connected to the cap body via a hinge portion so as to be freely opened and closed. When the lid body is closed, a sealing cylinder of the lid body is inserted into the discharge port of the cap body to seal it (see, for example, Patent Document 1).

[0003] Also, there has conventionally been known a hinge cap in which, when the lid body is closed, a plurality of protrusions protruding from the lid body are inserted into a plurality of discharge ports opened in the cap body to seal them (see, for example, Patent Document 2).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, the hinge caps described in Patent Documents 1 and 2 above have a problem that when there are a plurality of discharge ports or when the shape of the discharge port is other than circular, it is difficult to seal the discharge port by inserting the sealing cylinder or protrusions of the lid body when closing the lid body.

[0006] An object of the present invention is to solve the above problems and provide a hinge cap that can easily seal the discharge port regardless of the shape and number of the discharge ports. [Means for solving the problem]

[0007] To solve the above problems, the present invention provides a hinge cap comprising a cap body attached to the mouth of a container and a lid connected to the cap body via a hinge, wherein the cap body comprises a partition wall that seals the opening of the mouth of the container, a discharge port that penetrates the partition wall, and an opening projection that protrudes upward from the partition wall along the outer edge of the discharge port, and the lid comprises a top wall facing the partition wall and an elastically deformable elastic sealing member attached to the back surface of the top wall, wherein the elastic sealing member contacts the opening projection of the discharge port when the lid is closed and seals the discharge port by elastically deforming.

[0008] The hinge cap is characterized by having multiple outlets in the partition wall, having an elongated hole shape, having a star shape, and the cap body comprising an elastic wall that is vertically extended from the partition wall and is elastically deformable in the radial direction, a pressing part that presses against the elastic wall, and a locking projection that protrudes outward from the elastic wall, and the lid comprising an engaging piece that locks onto the locking projection of the cap body when the lid is closed, and the lid opening slightly due to the repulsive force of the elastic sealing member when the pressing part of the cap body is pressed, releasing the locking projection of the elastic wall from the engaging piece of the lid. The structure is characterized by the following: the cap body comprises an outer peripheral wall portion suspended from the outer edge of the partition wall portion, a mounting cylinder suspended from the inside of the outer peripheral wall portion of the partition wall portion and fitted to the outer circumference of the mouth of the container, a notch portion cut out from the upper end to the lower end on the front side of the outer peripheral wall portion, and a flap wall portion having an elastic wall and a pressing portion, and forming a space between itself and the outer circumference of the mounting cylinder so as to be elastically deformable within the notch portion; the lid body comprises a side peripheral wall suspended from the outer edge of the top wall portion, an engaging piece suspended from the center on the front side of the side peripheral wall portion and housed in the notch portion of the outer peripheral wall portion of the cap body when the lid is closed, and a locking hole portion formed in the engaging piece into which a locking projection of the elastic wall fits and locks. [Effects of the Invention]

[0009] By adopting the above configuration, the hinge cap of the present invention, when closed, has an elastic sealing member attached to the underside of the lid that seals the discharge port opened in the partition wall of the cap body, and when opened, the elastic sealing member's repulsive force slightly lifts the lid relative to the cap body, allowing it to be easily opened. [Brief explanation of the drawing]

[0010] [Figure 1] This is a side cross-sectional view showing a container with a hinged cap in a closed state, which is an embodiment 1 of the present invention. [Figure 2] This is a side cross-sectional view showing a container with a hinged cap in the open position, which is an embodiment 1 of the present invention. [Figure 3] This is a side cross-sectional view showing the hinge cap in its first embodiment of the present invention when the flap wall portion is pressed in. [Figure 4] This figure shows a container fitted with a hinged cap in a closed state, which is Embodiment 2 of the present invention. (a) is a top view of the partition wall portion of the cap body, and (b) is a side cross-sectional view of the hinged cap. [Figure 5] This figure shows a container fitted with a hinged cap in a closed state, which is Embodiment 3 of the present invention. (a) is a top view of the partition wall portion of the cap body, and (b) is a side cross-sectional view of the hinged cap. [Figure 6] This figure shows a container fitted with a hinged cap in a closed state, which is Embodiment 4 of the present invention. (a) is a top view of the partition wall portion of the cap body, and (b) is a side cross-sectional view of the hinged cap. [Modes for carrying out the invention]

[0011] Next, the hinge cap of the present invention will be described with reference to the drawings, using an example. In the following explanation, as seen in Figure 1, the left direction is referred to as the "front side," the right direction as the "back side," the left-right direction as the "radial direction," the upward direction as "up," and the downward direction as "down."

[0012] (Example 1) In Figure 1, A is a container, B is a cap body attached to container A, D is a lid connected to cap body B via a hinge portion C so as to be openable and closable, and E is an elastic sealing member made of elastomer or silicone rubber attached to the back surface of lid D. In this embodiment, the hinged cap is integrally molded with the cap body B and a portion of the back surface of lid D via the hinge portion C, and when closed, it closes against the elastic force of the elastic sealing member E between lid D and cap body B. The hinge portion C of this embodiment connects the lid D and the cap body B, and includes an elastic piece C1 located in the center of the back side that elastically deforms the lid D relative to the cap body B to maintain the closed and open states, and side hinges C2 located on both sides of the elastic piece C1.

[0013] Container A has an opening 1 at its top, and fitting protrusions 2 are provided on the outer circumference of the opening 1. The contents to be placed in container A may be liquid, but powders, granules, and highly viscous fluids are preferred.

[0014] As shown in Figures 1 and 2, the cap body B comprises a partition wall 5 that seals the opening of the mouth 1 of the container A, a discharge port 5a that penetrates the center of the partition wall 5, a discharge cylinder 6 that is erected from the partition wall 5 along the outer edge of the discharge port 5a, and an outer peripheral wall 7 that is connected to the outer edge of the partition wall 5 and covers the mouth 1 of the container A. An inner cylinder 8 that is inserted into the inner circumference of the opening of the mouth 1 from the lower surface of the partition wall 5 and a mounting cylinder 9 that is mounted on the outside of the inner cylinder 8, the inner circumference of which fits onto the outer circumference of the mouth 1. The discharge cylinder 6 has an opening projection 6a at its upper end that is formed to curve outwards in a trumpet shape.

[0015] On the rear side of the outer peripheral wall portion 7, a receiving recess 10 is provided in the center for accommodating the lower part of the elastic piece C1 of the hinge portion C. Side hinges C2 are connected to the upper ends on both sides of the receiving recess 10, and the elastic piece C1 is connected to the outer edge of the recess 10. On the front side of the outer peripheral wall portion 7, two notch portions 11 that are notched from the upper end to the lower end are formed at intervals in the center. Inside the notch portions 11, there is a thin-walled portion 13 that is separated from the outer peripheral wall portion 7 and is continuously provided via a thin-walled and elastically deformable thin-walled portion 13 from the outer end of the partition wall portion 5. A space is created between the outer periphery of the mounting cylinder 9, and a flap wall portion 14 that is pushed into the space with the thin-walled portion 13 as a fulcrum and elastically deformed in the radial direction is formed. Further, the outer peripheral wall portion 7 is also notched below the flap wall portion 14 (between the shoulder portion of the container A).

[0016] The flap wall portion 14 includes an elastic wall 16 formed with a diameter such that the outer surface is close to the inner surface of an engagement piece 29 described later of the lid body D when the lid is closed, and a pressing portion 17 that is expanded to the same diameter as the outer surface of the engagement piece 29 via a stepped portion from the lower end of the elastic wall 16. At a predetermined position of the elastic wall 16, a locking protrusion 18 that engages with the engagement piece 29 of the lid body D and hooks the lower surface portion 18a to maintain the closed state is provided.

[0017] On the inner periphery of the mounting cylinder 9, an engaging protrusion 20 that engages with the fitting ridge 2 of the mouth portion 1 is provided.

[0018] The lid body D is attached to the upper outer periphery of the outer peripheral wall portion 7 of the cap body B via a hinge portion C on the back side so as to be freely opened and closed, and includes a top wall 25 and a side peripheral wall 26 that extends vertically from the outer edge of the top wall 25. On the back surface of the top wall 25, an elastic seal member E is attached by sticking, insert molding, two-color molding, etc. On the back side of the lid body D, a notch end portion 25a of a predetermined portion of the top wall 25 extends to the back side, and a housing notch 27 that houses the upper portion of the elastic piece C1 of the hinge portion C that is notched to the lower end of the side peripheral wall 26 is formed. Side hinges C2 are continuously provided at both lower end portions of the housing notch 27 of the side peripheral wall 26, and the elastic piece C1 is continuously provided at the notch end portion 25a of the top wall 25. On the front side of the side peripheral wall 26, an engagement piece 29 that is vertically provided and is housed in the notch portion 11 of the outer peripheral wall portion 7 of the cap body B when the lid is closed is provided at the center.

[0019] The engaging piece 29 extends from the side peripheral wall 26, and when the lid is closed, both sides are close to the inner surfaces of the notches 11 of the outer peripheral wall portion 7 of the cap body B, and the lower end is close to the upper surface of the pressing portion 17 of the flap wall portion 14 of the cap body B. At a predetermined position, the locking projection 18 of the elastic wall 16 fits into the locking hole 30, which the lower surface portion 18a catches on, and a locking hole 30 is opened to maintain the closed state of the lid D.

[0020] In this embodiment, the hinge portion C consists of an elastic piece C1 comprising a horizontal portion 36 extending to the rear side, connected to the notched end 25a of the top wall 25 of the lid D via a thin, deformable upper thin portion 35; a vertical portion 38 extending upward, connected to the outer edge of the recess 10 of the housing recess 10 of the cap body B via a deformable lower thin portion 37; and a deformable corner portion 39 connecting the horizontal portion 36 and the vertical portion 38. Together with the side hinge C2, which acts as a pivot point when the lid D opens and closes, the degree of deformation of the upper thin portion 35, the lower thin portion 37, and the corner portion 39 helps to support the lid D in either a closed or open position relative to the cap body B.

[0021] The elastic sealing member E is made of an elastically deformable material and is formed to match the shape of the back surface of the top wall 25 of the lid D (in this embodiment, the area of ​​the housing notch 27 in the top wall 25 is cut out). It is also formed to a height α such that when the lid is closed, its lower surface is lower than the upper end of the opening projection 6a of the discharge cylinder 6 of the cap body B, and is attached to the back surface of the top wall 25 by adhesive, insert molding, two-color molding, or the like. Furthermore, when the lid is closed, the lower surface of the elastic sealing member E comes into contact with the opening projection 6a of the discharge cylinder 6, and as it elastically deforms, a force is applied that tends to push the lid D upwards relative to the cap body B due to the repulsive force.

[0022] Next, the usage and effects of this embodiment will be described. In this embodiment, the hinge cap is molded in the open state shown in Figure 2 by setting the mold and injecting synthetic resin to integrally mold the cap body B and the lid D via the hinge portion C. After that, the elastic sealing member E is attached to the back surface of the top wall 25 of the lid D by adhesive or the like. The elastic sealing member E may also be integrally formed during the hinge cap molding process by insert molding, two-color molding, or the like.

[0023] The hinged cap, which is molded in the open position, is placed over the cap body B by rotating the lid D around the hinge C as a pivot point, and then closed as shown in Figure 1. When closing the lid, the elastic sealing member E attached to the back surface of the top wall 25 of the lid D comes into contact with the opening projection 6a of the discharge cylinder 6, and as that portion is pressed in and elastically deforms while being tightly fitted, the engaging piece 29 of the front side of the lid D is fitted into the notch 11 of the outer peripheral wall portion 7 of the cap body B from diagonally above.

[0024] Finally, the lower surface of the side circumferential wall 26 of the lid D abuts against the upper surface of the outer circumferential wall 7 of the cap body B, preventing the lid from closing. Additionally, the locking projection 18 of the flap wall 14 within the notch 11 of the cap body B fits into the locking hole 30 of the engaging piece 29 of the lid D. The engaging piece 29 is then housed within the notch 11, the upper surface of the pressing portion 17 of the flap wall 14, and the outer surface of the elastic wall 16, completing the lid closing process. When the lid is closed, the lower surface of the elastic sealing member E comes into contact with the opening projection 6a of the discharge cylinder 6 and elastically deforms, sealing the discharge cylinder 6 tightly. At the same time, the repulsive force of the elastic sealing member E attempts to push the lid D upwards relative to the cap body B. However, the lower surface portion 18a of the locking projection 18 of the flap wall portion 14 of the cap body B catches within the locking hole portion 30 of the engaging piece 29 of the lid D, and together with the hinge portion C, prevents the lid D from opening.

[0025] After closing the hinge cap, the inner cylinder 8 and mounting cylinder 9 of the cap body B are set into the opening 1 of container A containing the contents, and the cap is pressed down from above to attach the closed hinge cap to container A, as shown in Figure 1.

[0026] When using the contents of container A, the pressing portion 17 of the flap wall portion 14 of the cap body B, located below the engaging piece 29 of the lid D, is pressed from the outside, thereby pushing the flap wall portion 14 inward, with the thin-walled portion 13 acting as a fulcrum and deformable portion. When the flap wall portion 14 is pushed in, as shown in Figure 3, the locking projection 18 also moves inward, and the engagement between the locking projection 18 and the locking hole portion 30 of the engaging piece 29 of the lid D is released. When the engagement between the flap wall 14 and the engaging piece 29 is released, the repulsive force of the elastically deformed elastic sealing member E pushes the lid D upward relative to the cap body B, with the hinge portion C as the pivot point. This releases the tight seal between the lower surface of the elastic sealing member E and the opening projection 6a of the discharge cylinder 6, causing the front side of the lid D to float slightly relative to the cap body B, with the hinge portion C as the pivot point.

[0027] After the front side of the lid D is slightly lifted relative to the cap body B with the hinge portion C as the pivot point, the pressing portion 17 of the flap wall portion 14 is released, and the engaging piece 29 of the lifted lid D is pushed up from below in the opening direction, so that the lid D is completely opened relative to the cap body B with the hinge portion C as the pivot point, as shown in Figure 2. When the pressure portion 17 of the flap wall portion 14 is released, the restoring force of the thin-walled portion 13 automatically returns the flap wall portion 14 to its original position relative to the cap body B. Furthermore, in this embodiment, when the lid is fully opened, the deformed elastic piece C1 and the side hinge C2, which acts as the pivot point for the opening and closing lid, allow the lid body D to be maintained in the open position relative to the cap body B.

[0028] After the lid D is opened, the contents of container A can be dispensed and used by tilting the dispensing nozzle 6 of the open cap body B in the dispensing direction. Furthermore, if the body of container A is made squeezeable, then if the contents are highly viscous, such as mayonnaise or cream, the contents can be dispensed to the outside through the opening of the dispensing cylinder 6 by squeezing the body of container A with the necessary force.

[0029] After using the contents of container A, the lid D is closed onto the cap body B again. The locking projection 18 of the flap wall portion 14 of the cap body B is hooked onto the locking hole portion 30 of the engaging piece 29 of the lid D and fitted into place. At the same time, the lower surface of the elastic sealing member E comes into contact with the opening projection 6a of the discharge cylinder 6, sealing the inside of the discharge cylinder 6. The lid D is then closed onto the cap body B while the elastic force of the elastic sealing member E is exerted, sealing the inside of the cap body B and the inside of container A.

[0030] In this embodiment, when the lid D is closed onto the cap body B, the hinge cap presses the elastic sealing member E attached to the back surface of the lid D against the opening projection 6a of the discharge cylinder 6 of the cap body B, sealing it, and the engaging piece 29 of the lid D and the flap wall portion 14 of the cap body B engage to maintain the closed state. Furthermore, when opening the lid, pressing the pressing portion 17 of the flap wall portion 14 on the front side of the cap body B releases the engagement between the engaging piece 29 of the lid D and the flap wall portion 14 of the cap body B. Due to the repulsive force of the elastic sealing member E, the front side of the lid D lifts slightly relative to the cap body B, allowing it to be opened. Thus, the lid can be easily opened without applying force from the closed state. In this embodiment, it is particularly effective when the discharge port is made large.

[0031] In this embodiment, the hinge C connects the lid D and the cap body B, and includes an elastic piece C1 located in the center that elastically deforms to maintain the closed and open states, and side hinges C2 located on both sides of the elastic piece C1. However, since it is sufficient to provide auxiliary support for maintaining the closed and open states, the hinge may be located in the center of the back side of the lid D and the cap body B, with elastic pieces located on both sides that deform to maintain the state. Alternatively, if it is not necessary to maintain both the closed and open states, a hinge can be placed only in the center of the rear side.

[0032] (Example 2) Next, Example 2, in which the shape of the discharge port 5a and the lid D of the hinge cap body B in Example 1 are changed, will be described with reference to the figure. In the following description, components identical to those in Example 1 will be denoted by the same reference numerals, and modified components will be denoted by new reference numerals, with the differences being the main focus of the explanation.

[0033] In Figure 4, Aa is a container, F is a cap body attached to container Aa, G is a lid connected to cap body F via a hinge portion C so as to be openable and closable, and Ea is an elastic sealing member made of an elastomer or silicone rubber attached to the back surface of lid G. In this embodiment, the hinged cap is integrally molded with the cap body F and a portion of the back surface of lid G via the hinge portion C, and when closed, it closes against the elastic force of the elastic sealing member Ea between lid G and cap body F.

[0034] Container Aa has an opening 1 at its top, and a male screw 40 is threaded around the outer circumference of the opening 1.

[0035] The cap body F comprises a partition wall portion 45 that seals the opening of the mouth portion 1 of the container Aa, a mounting cylinder 46 that is suspended from the outer edge of the partition wall portion 45 and whose inner circumference is screwed onto the outer circumference of the mouth portion 1, and an outer peripheral wall portion 47 that is suspended from the upper outer end of the outer circumference of the mounting cylinder 46 at a distance from the outer circumference of the mounting cylinder 46. The partition wall portion 45 is provided with a plurality of small diameter openings 48 drilled vertically and horizontally as discharge ports. On the upper surface of the partition wall 45, an opening projection 48a is formed that protrudes upward along the outer edge of each small opening 48.

[0036] A series of hinges C are installed on the back side of the outer perimeter of the outer wall portion 47. On the front side of the outer peripheral wall portion 47, two notches 50 are formed at intervals in the center, extending from the upper end to the lower end. Within the notches 50, a flap wall portion 52 is formed, which is separated from the outer peripheral wall portion 47 and connected to the upper edge of the mounting cylinder 46 via a thin-walled, elastically deformable thin-walled portion 51. This creates a space between the flap wall portion 52 and the outer circumference of the mounting cylinder 46, and the flap wall portion 52 is pushed into the space with the thin-walled portion 51 as a fulcrum, causing it to elastically deform in the radial direction. The outer peripheral wall portion 47 is also notched below the flap wall portion 52 (between it and the shoulder portion of container Aa).

[0037] The flap wall portion 52 has a thin-walled portion 51 attached to its upper end and is formed with an elastic wall 53 that slopes outwards so that its outer surface is close to the inner surface of the engaging piece 62 of the lid G described later when the lid is closed. It also includes a pressing portion 54 whose outer surface is vertically attached from the lower end of the outer circumference of the elastic wall 53 with the same diameter as the outer surface of the engaging piece 62. A locking projection 55 is provided at a predetermined position on the elastic wall 53, which engages with the engaging piece 62 of the lid G so that the lower surface portion 55a catches and maintains the closed state.

[0038] The inner circumference of the mounting cylinder 46 is fitted with a female thread 57 that engages with the male thread 40 of the opening 1.

[0039] The lid G is attached to the upper outer edge of the outer peripheral wall portion 47 of the cap body F via a hinge portion C on the rear side so as to be able to open and close. It comprises a top wall 60 and a side peripheral wall 61 that extends vertically from the outer edge of the top wall 60, and an elastic sealing member Ea is attached to the back surface of the top wall 60 by adhesive, insert molding, two-color molding, or the like.

[0040] A hinge section C is provided in series on the rear side of the side perimeter wall 61. On the front side of the side peripheral wall 61, an engaging piece 62 is vertically positioned in the center, which is housed within the notch 50 of the outer peripheral wall portion 47 of the cap body F when the lid is closed.

[0041] A locking hole 63 is opened at a predetermined position on the engaging piece 62, into which a locking projection 55 of the elastic wall 53 fits, and the lower portion 55a catches, maintaining the closed state of the lid G.

[0042] The elastic sealing member Ea is made of an elastically deformable material and is formed with a height β such that when the lid is closed, its lower surface is lower than the upper surface of the partition wall portion 45 of the cap body F. It is attached to the back surface of the top wall 60 by adhesive, insert molding, two-color molding, or the like. Furthermore, when the lid is closed, the lower surface of the elastic sealing member Ea comes into contact with the upper surface of the partition wall portion 45 and the opening projection 48a protruding from the upper surface, sealing the small opening 48 and, through elastic deformation, biasing the lid G to push upward relative to the cap body F due to the repulsive force.

[0043] Next, the usage and effects of this embodiment will be described. In this embodiment, the hinge cap is integrally molded in the open state, and then an elastic sealing member Ea is attached to the back surface of the top wall 60 of the lid G by bonding, insert molding, two-color molding, etc. The hinge cap, which was molded in the open state, is then placed over the cap body F by rotating the lid G with the hinge portion C as the pivot point, and the lid is closed as shown in Figure 4. When the lid is closed, the lower surface of the elastic sealing member Ea installed inside the lid G comes into contact with the upper surface of the partition wall portion 45 of the cap body F, is pressed in, and adheres tightly to the upper surface of the partition wall portion 45 and the opening projection 48a, elastically deforming while closing the small opening 48, and the engaging piece 62 of the front side of the lid G is fitted into the notch 50 of the outer peripheral wall portion 47 of the cap body F from diagonally above.

[0044] Finally, the lower surface of the side circumferential wall 61 of the lid G abuts against the upper surface of the outer circumferential wall portion 47 of the cap body F, preventing the lid from closing. Additionally, the locking projection 55 of the flap wall portion 52 within the notch portion 50 of the cap body F fits into the locking hole portion 63 of the engaging piece 62 of the lid G, completing the lid closing process. When the lid is closed, the lower surface of the elastic sealing member Ea comes into contact with the upper surface of the partition wall 45, undergoing elastic deformation and creating a tight seal inside the small opening 48. Furthermore, the elastic force of the elastic sealing member Ea attempts to push the lid G upwards relative to the cap body F, but the lower surface portion 55a of the locking projection 55 on the flap wall portion 52 of the cap body F catches within the locking hole portion 63 of the engaging piece 62 of the lid G, preventing the lid G from opening together with the hinge portion C.

[0045] In this embodiment, the cap body F has opening protrusions 48a that project upward along the outer edges of the multiple small openings 48 on the upper surface of the partition wall portion 45. Therefore, when the lid is closed, the portion of the opening protrusions 48a is higher compared to a cap with a flat upper surface of the partition wall portion 45, which allows for stronger elastic deformation of the elastic sealing member Ea. Furthermore, the opening protrusions 48a bite into the lower surface of the elastic sealing member Ea, creating a tight seal and allowing for a better seal inside the small openings 48.

[0046] After closing the hinge cap, the mounting cylinder 46 of the cap body F is set into the opening 1 of container Aa containing the contents and screwed into place, thereby attaching the closed hinge cap to the lid G.

[0047] When using the contents of container Aa, the pressing portion 54 of the flap wall portion 52 of the cap body F, located below the engaging piece 62 of the lid G, is pressed from the outside, pushing the flap wall portion 52 inward and releasing the engagement between the locking projection 55 and the locking hole portion 63 of the engaging piece 62 of the lid G. When the engaging piece 62 is released, the repulsive force of the elastically deformed elastic sealing member Ea pushes the lid G upward relative to the cap body F, with the hinge portion C as the pivot point, causing the front side of the lid G to float slightly relative to the cap body F.

[0048] After the lid G is lifted, the pressure part 54 is released, and the engaging piece 62 of the lifted lid G is pushed up from below in the opening direction, releasing the seal on the small opening 48 of the partition wall 45 of the cap body F, and the lid G is completely opened relative to the cap body F with the hinge part C as the pivot point, completely opening the small opening 48 of the partition wall 45 of the cap body F.

[0049] After the lid G is opened, the cap body F of this embodiment can dispense the contents, if they are in powder form, through the multiple small openings 48. Furthermore, if the contents are highly viscous, such as mayonnaise or cream, the body of container Aa can be made squeezeable. By squeezing the body of container Aa with the required force, the contents can be dispensed through multiple small openings 48 with a circular cross-section. Other effects and benefits are the same as in Example 1.

[0050] In this embodiment, the hinged cap is attached to the opening 1 of the container Aa containing the contents by screwing the cap body F onto it. Since the hinged cap (cap body F) can be detachably attached to the container Aa, depending on the contents, a sealing foil may be attached to the opening 1 of the container Aa for hygiene reasons or to extend the shelf life. After the user removes the cap body F from the container Aa, the sealing foil is peeled off, and the cap body F is then reattached to the opening 1 of the container Aa by screwing it onto it for use. Thus, in Example 1, a similar effect can be expected by screwing threads into the outer circumference of the mouth portion 1 of container A and the inner circumference of the mounting cylinder 9 of the cap body B. Of course, if not necessary, the mouth portion 1 of container Aa and the cap body F may also be attached by pressing in a stopper, as in Example 1.

[0051] (Example 3) Next, we will describe Example 3, in which the shape of the partition wall portion 45 of the cap body F of the hinge cap in Example 2 is changed, with reference to the figure. In the following description, components identical to those in Example 2 will be denoted by the same reference numerals, and modified components will be denoted by new reference numerals, with the differences being the main focus of the explanation.

[0052] In Figure 5, Aa is a container, Fa is the cap body attached to container Aa, G is a lid connected to cap body Fa via a hinge C so as to be openable and closable, and Ea is an elastic sealing member made of an elastomer or silicone rubber attached to the back surface of lid G.

[0053] The partition wall 65 of the cap body Fa is provided with slit openings 66, which are elongated holes drilled on both sides in the direction of the front, serving as discharge ports. The slit openings 66 can be straight or curved (U-shaped, bent, etc.) as long as they are elongated holes. An opening projection 66a is formed on the upper surface of the partition wall portion 65, projecting upward along the outer edge of the slit opening 66.

[0054] Next, the usage and effects of this embodiment will be described. In this embodiment, when the hinge cap is closed, the lower surface of the elastic sealing member Ea installed inside the lid G comes into contact with the upper surface of the partition wall 65 of the cap body Fa, is pressed in, and undergoes elastic deformation. Finally, the lower surface of the elastic sealing member Ea comes into close contact with the upper surface of the partition wall 65, sealing the inside of the slit opening 66 and closing the lid.

[0055] When using the contents of container Aa, the cap body Fa of this embodiment can dispense the contents in a wide, lateral manner from the slit opening 66 if the contents are in powder form. Furthermore, if the contents are highly viscous, such as mayonnaise or cream, the body of container Aa can be made squeezeable. By squeezing the body of container Aa with the required force, the contents can be dispensed through the slit opening 66 in a wide, elongated shape. Other effects and benefits are the same as in Example 2.

[0056] (Example 4) Next, we will describe Example 4, in which the shape of the partition wall portion 45 of the cap body F of the hinge cap in Example 2 is changed, with reference to the figure. In the following description, components identical to those in Example 2 will be denoted by the same reference numerals, and modified components will be denoted by new reference numerals, with the differences being the main focus of the explanation.

[0057] In Figure 6, Aa is a container, Fb is a cap body attached to container Aa, G is a lid connected to cap body Fb via a hinge C so as to be openable and closable, and Ea is an elastic sealing member made of an elastomer or similar material attached to the back surface of lid G.

[0058] The partition wall 70 of the cap body Fb is provided with a star-shaped opening 71, which is drilled in a shape such as a star polygon, as a discharge port. On the upper surface of the partition wall portion 70, an opening projection 71a is formed that protrudes upward along the outer edge of the star-shaped opening 71.

[0059] Next, the usage and effects of this embodiment will be described. In this embodiment, when the hinge cap is closed, the lower surface of the elastic sealing member Ea installed inside the lid G comes into contact with the upper surface of the partition wall 70 of the cap body Fb, is pressed in, and undergoes elastic deformation. Finally, the lower surface of the elastic sealing member Ea comes into close contact with the upper surface of the partition wall 70, sealing the inside of the star-shaped opening 71 and closing the lid.

[0060] When using the contents of container Aa, if the contents are highly viscous, such as mayonnaise or cream, the cap body Fb of this embodiment can be used to squeeze the body of container Aa with the necessary force, thereby discharging the contents from the star-shaped opening 71 in a star shape. Other effects and benefits are the same as in Example 2. [Industrial applicability]

[0061] The hinged cap of the present invention is suitable for use as a cap for food products, cosmetics, and other products, as the shape and number of discharge openings are determined by the application. When the lid is closed, an elastic sealing member attached to the underside of the lid seals the discharge opening that is opened in the partition wall of the cap body, and when the lid is opened, the elastic sealing member's repulsive force slightly lifts the lid relative to the cap body, allowing it to be opened easily. [Explanation of Symbols]

[0062] A, Aa container B, F, Fa, Fb Cap Body C Hinge C1 Elastic piece C2 Side Hinge D, G lid body E, Ea Elastic sealing member α, β height 1 Mouth 2. Interlocking protrusions 5, 45, 65, 70 Bulkhead 5a Discharge port 6 Discharge tube 6a, 48a, 66a, 71a opening protrusion 7, 47 Outer wall 8 Inner cylinder 9.46 Mounting cylinder 10 Recessed 11. 50 Notch 13, 51 Thin-walled section 14, 52 Flap wall section 16, 53 Elastic wall 17, 54 Pressing part 18, 55 Locking protrusion 18a, 55a Bottom part 20 Engagement protrusion 25, 60 Top wall 25a Notched end 26, 61 Side walls 27. Storage cutout 29, 62 Engaging pieces 30, 63 Locking hole 35 Upper thin-walled section 36 Horizontal section 37 Lower thin section 38 Vertical section 39 Corner 40 Male screw 48 Small opening (discharge port) 57 Female thread 66 Slit opening (discharge port) 71 Star-shaped opening (discharge port)

Claims

1. A hinged cap comprising a cap body that is attached to the mouth of a container, and a lid body connected to the cap body via a hinge portion, The cap body comprises a partition that seals the opening of the container, a discharge port that penetrates the partition, and an opening projection that protrudes upward from the partition along the outer edge of the discharge port. The lid comprises a top wall facing the partition wall and an elastically deformable elastic sealing member attached to the back surface of the top wall. A hinge cap characterized in that the elastic sealing member, when the lid is closed, contacts the opening projection of the discharge port and seals the discharge port by elastically deforming.

2. The hinge cap according to claim 1, characterized in that multiple outlets are provided in the partition wall.

3. The hinge cap according to claim 1, characterized in that the discharge port has an elongated hole shape.

4. The hinge cap according to claim 1, characterized in that the discharge port is star-shaped.

5. The cap body comprises an elastic wall that extends vertically from the partition wall and is elastically deformable in the radial direction, a pressing portion that presses against the elastic wall, and a locking projection that protrudes outward from the elastic wall. The lid is equipped with an engaging piece that engages with a locking projection on the cap body when closed. The hinge cap according to any one of claims 1 to 4, characterized in that the lid opens slightly due to the repulsive force of the elastic sealing member when the locking projection of the elastic wall is released from the engaging piece of the lid by pressing the pressing portion of the cap body.

6. The cap body comprises an outer peripheral wall portion extending downward from the outer edge of the partition wall portion, a mounting cylinder extending downward from the inside of the outer peripheral wall portion of the partition wall portion and fitted around the outer circumference of the mouth of the container, a notch portion cut out from the upper end to the lower end on the front side of the outer peripheral wall portion, and a flap wall portion having an elastic wall and a pressing portion, and forming a space between itself and the outer circumference of the mounting cylinder, allowing for elastic deformation within the notch portion. The hinge cap according to claim 5, characterized in that the lid comprises a side circumferential wall suspended from the outer edge of the top wall, an engaging piece suspended from the center of the front side of the side circumferential wall and housed in a notch in the outer circumferential wall of the cap body when the lid is closed, and a locking hole formed in the engaging piece into which a locking projection of an elastic wall fits and locks.

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