Hinge cap

Abstract

To provide a hinge cap that enables easy wipe-off of dripped liquid even when the liquid has dripped onto the pour-out side of the cap body during pour-out of the content liquid.SOLUTION: A hinge cap has a cap body and a lid body. The cap body comprises: an inner cylinder and an outer circumferential wall part that are vertically disposed interposing a mouth of a container; and a base wall continuously provided on the inner cylinder and the outer circumferential wall part. The outer circumferential wall part comprises: a stepped recess with a flat surface lower than a top surface on the hinge side formed in a predetermined arc range on a pour-out side; a back surface outer wall part erected in an arc range other than the stepped recess along an outer circumferential direction on the hinge side; and a slit groove formed between the back surface outer wall part and the base wall part, with a bottom surface continuous with the flat surface of the stepped recess. The stepped recess has a notched recess that is notched downward from the top surface of the outer wall part and does not form a flat surface. The lid body comprises: a top wall; a side peripheral wall vertically disposed from the peripheral edge of the top wall; and a covering wall for covering the stepped recess, vertically disposed from the pour-out side of the side peripheral wall.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a hinge cap that is attached to the mouth of a container, and more particularly to a hinge cap that allows liquid that drips onto the pouring side to be easily wiped off. [Background technology]

[0002] 2. Description of the Related Art Conventionally, hinge caps have been known that are provided with a separation mechanism that separates the cap body from the container by lifting up the open top lid when discarding. For this type of hinge cap, various structures have been proposed for breaking the tubular portion that fits into the mouth of the container, but due to the balance between the strength and sealing ability required to fit and hold the tubular portion into the mouth of the container, a considerable amount of force is required to break the tubular portion.

[0003] For this reason, a hinge cap is known in which the cap body has an outer tube and an inner tube suspended across a fitting portion with the mouth of the container, and an engaging tube portion connected to the outer tube and inner tube and having an engaging portion with the top lid at its upper part, and the outer tube connected to the hinge has a vertical tear line with a vertical cut portion near the hinge, and a slit groove having an opening upward from the vertical tear line over an arc range of a predetermined circumferential angle is provided between the outer tube and the engaging ring, and a circumferential tear line consisting of a thin-walled connecting portion connecting the outer tube and the engaging ring is provided on the bottom surface of the slit groove, connected to the vertical tear line (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-153429 Summary of the Invention [Problem to be solved by the invention]

[0005] However, with the hinge cap described in Patent Document 1, when the contents are poured from the pouring tube of the cap body, they drip and accumulate in the slit groove formed on the upper surface of the fitting tube of the cap body, which makes it difficult to wipe off and is unhygienic.

[0006] The present invention aims to solve the above problem and to provide a hinge cap that allows dripping liquid to be easily wiped off even if the liquid drips onto the pouring side of the cap body when the contents are poured out. [Means for solving the problem]

[0007] In order to solve the above-mentioned problems, the present invention provides a hinge cap comprising a cap body to be attached to a container, and a lid body attached to the cap body via a hinge, wherein the cap body has an inner tube and an outer peripheral wall portion that hang down across the mouth of the container, and a base wall portion that is connected to the inner tube and the outer peripheral wall portion, and the outer peripheral wall portion is: A notched recess formed in an arc shape from the top surface downward within a predetermined arc range from the center of the pouring side to the left and right, , along the outer periphery of the hinge side Notched recess a rear outer wall portion erected in an arc range other than the rear outer wall portion; Notched recess The bottom surface is formed between Notched recess and a continuous slit groove, The lid body a top wall, a side wall extending from the periphery of the top wall, and a side wall extending from the pouring side of the side wall. Notched recess and a covering wall covering the

[0008] As an embodiment of the hinge cap, The notched recess has an outer peripheral surface extending from top to bottom and a curved surface that curves from the lower end of the outer peripheral surface toward the outer periphery of the outer peripheral wall portion. The slit groove has a depth from the upper surface of the rear outer wall portion. A configuration characterized by being constant is adopted. .

[0009] Furthermore, as a specific embodiment of the hinge cap, a configuration is adopted in which the outer wall portion has a separation mechanism consisting of a vertical tear line formed vertically from the vicinity of the hinge toward the bottom surface of the slit groove, and a circumferential tear line formed from the vertical tear line along the bottom surface of the slit groove. [Effects of the Invention]

[0010] By adopting the above-described configuration, the hinge cap of the present invention is such that even if the liquid drips onto the pouring side of the cap body when the contents are poured out, the dripping liquid does not accumulate on the pouring side, and the dripping liquid can be easily wiped off. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a side cross-sectional view showing a closed state of a container equipped with a hinge cap according to a first embodiment of the present invention. [Figure 2] 1A and 1B are diagrams showing the hinge cap according to the first embodiment of the present invention in an open state, where (a) is a top view and (b) is a side cross-sectional view. [Figure 3] 2(a) is an enlarged view of the main part of the first embodiment of the present invention shown in FIG. 2(a), where (a) is a side cross-sectional view taken along line O-X1 (0° from the center of the hinge), (b) is a side cross-sectional view taken along line O-X2 (45° from the center of the hinge), (c) is a side cross-sectional view taken along line O-X3 (60° from the center of the hinge), and (d) is a side cross-sectional view taken along line O-X4 (90° from the center of the hinge). [Figure 4] 1A and 1B are top views showing a process of separating hinge caps from a container to which the hinge caps according to the first embodiment of the present invention are attached. [Figure 5] 1 is a side cross-sectional view showing a closed state of a container equipped with a hinge cap according to an embodiment of the present invention. [Figure 6] 1A and 1B are diagrams showing an open state of a hinge cap according to an embodiment of the present invention, in which FIG. 1A is a top view and FIG. 1B is a side cross-sectional view. [Figure 7] FIG. 10 is a cross-sectional side view showing a closed state of a container equipped with a hinge cap according to a third embodiment of the present invention. [Figure 8] 10A and 10B are diagrams showing a hinge cap according to a third embodiment of the present invention in an open state, where (a) is a top view and (b) is a side cross-sectional view. [Figure 9] FIG. 10 is a cross-sectional side view showing a closed state of a container equipped with a hinge cap according to a fourth embodiment of the present invention. [Figure 10]10A and 10B are diagrams showing a hinge cap according to a fourth embodiment of the present invention in an open state, where (a) is a top view and (b) is a side cross-sectional view. DETAILED DESCRIPTION OF THE INVENTION

[0013] Next, examples of the hinge cap of the present invention will be described. and reference examples The following description will be given with reference to the drawings showing the same. In the following description, the left side in FIG. 1 is the "pouring side," the right side is the "rear side," the upper side is the "top," and the lower side is the "bottom." In the following description, "Example 1" will be read as "Reference Example 1," "Example 2" as "Example," "Example 3" as "Reference Example 3," and "Example 4" as "Reference Example 4." [Example]

[0014] In FIG. 1, A is a container, B is a cap body attached to the container A, and D is a lid body attached to the cap body B via a hinge C so as to be able to open and close. The container A has a mouth 1 at the top, and a fitting ridge 2 is provided on the upper outer periphery of the mouth 1, and the upper outer periphery of the fitting ridge 2 forms an inclined surface 2a.

[0015] As shown in Figures 1 and 2, the cap body B comprises an attachment portion 3 that is fitted onto the mouth portion 1 of the container A, an upper wall 4 that extends inward from the inner edge of the attachment portion 3 and seals the opening of the mouth portion 1, a pouring outlet 4a that penetrates the upper wall 4, and a pouring tube 5 that is erected on the upper surface of the upper wall 4 with a diameter slightly wider than the pouring outlet 4a. In order to make it easier to pour the liquid content, in this embodiment, the pouring side of the pouring tube 5 is formed higher than the back side (hinge C side), and the lip portion 5a is widened in a trumpet shape.

[0016] The mounting portion 3 is composed of an annular lid engagement portion 6 that engages with the lid body D, an inner tube 7 that hangs down from the inner side of the lid engagement portion 6, and an outer wall portion 8 that hangs down from the outer side of the lid engagement portion 6.A hinge C is connected to the upper end of the back side of the outer wall portion 8, and an engagement protrusion 9 is provided at the lower inner periphery that engages with the mating protrusion 2 of the mouth portion 1 of the container A. In this embodiment, the attachment portion 3 is composed of an inner tube 7 and an outer wall portion 8 that are hung across the mouth portion 1 of the container A, and a lid engagement portion 6 that is connected to the inner tube 7 and the outer wall portion 8. However, the connection between the inner tube 7 and the outer wall portion 8 is not limited to the lid engagement portion 6, and any ring-shaped base wall portion will do, and in this case the lid engagement portion 6 may be provided on the peripheral portion of the upper wall 4.

[0017] The lid engagement portion 6 has an arc-shaped lid engagement protrusion 11 that stands upright, leaving a notch 10 cut out from the center of the back side to the left and right within a predetermined range to the same height as the upper surface of the upper wall 4, and within the notch 10, multiple back side protrusions 12 are protruding, arranged with equal gaps from both ends of the lid engagement protrusion 11. The lid engaging projection 11 has a locking projection 13 on its outer periphery.

[0018] At the top of the outer peripheral wall portion 8, on the pouring side, there is a stepped recess 15 recessed from the outer periphery in an arc shape over an arc range of approximately 180° to a depth of a distance α from above, and on the remaining back side, the upper surface 8a is flush with the upper surface of the upper wall 4 and the bottom surface of the cutout portion 10, and a hinge C is connected to the upper end of the outer periphery. The step recess 15 is formed with a flat surface 15a that is a distance α below the top surface 8a, an inclined surface 15b that slopes upward and inward from the inner peripheral edge of the flat surface 15a, and inclined side surfaces 15c that slope from both sides of the end of the flat surface 15a toward both sides of the top surface 8a.

[0019] As shown in Figure 2(a), near the left of the hinge C of the outer wall portion 8, an outer peripheral cutout portion 16 that is approximately V-shaped in a plan view is cut into the outer peripheral surface from the upper surface 8a, leaving a thin bottom wall at the lower end. At a position corresponding to the outer peripheral notch 16 of the engaging protrusion 9 on the inner periphery of the outer wall portion 8, an inner peripheral notch (not shown) is carved vertically, and the outer wall portion 8 in that portion is cut from the inside and outside, forming a vertical weakened portion 17 that forms a vertical tear line that makes the wall thinner.

[0020] As shown in Figure 2, on the hinge C side of the outer peripheral cutout 16 on the back side of the outer peripheral wall portion 8, a slit groove 18 is recessed from the top surface 8a, starting from a position separated by the thin-walled portion at the upper part of the inner peripheral side of the end face 16a, extending circumferentially to the inclined side surface 15c of the step recess 15 on the right end side of the top surface 8a, and further from the inclined side surface 15c at the end of the step recess 15 to the vicinity of the outer peripheral cutout 16.In addition, the top surface 8a on the opposite side of the hinge C of the outer peripheral cutout 16 of the outer peripheral wall portion 8 forms a thick-walled portion 19 that integrally connects the upper part of the outer peripheral wall portion 8 and the lower part of the lid engagement portion 6.

[0021] As shown in FIG. 3(a), the bottom surface 20 of the slit groove 18 is recessed deepest at a distance β from the top surface 8a from the end surface 16a side to the center of the hinge C (back side) (line O-X1 in FIG. 2) as bottom surface 20a, and as shown in FIG. 3(b), the bottom surface 20b is located at approximately 45° from the center of the hinge C toward the right (line O-X2 in FIG. 2), and further, as shown in FIG. 3(c), the bottom surface 20c is located at approximately 60° from the center of the hinge C toward the right (line O-X3 in FIG. 2), and is formed so that the height from the top surface 8a gradually becomes shallower from the distance β, and finally, as shown in FIG. 3(d), the inclined side surface 15c of the step recess 15 is cut out from the center of the hinge C toward the right at approximately 90° (line O-X4 in FIG. 2) and is formed to continue to the end of the flat surface 15a at a distance α, and the inner side of the bottom surface 20, as shown in FIGS. 2 and 3, forms a thin-walled lower lateral weakened portion 21 that connects the outer peripheral wall portion 8 from the end face 16a side to the center of the hinge C to the lower wall portion of the lid engagement portion 6, and an arc-shaped connecting portion 22 is provided that slopes inward and upward from the inner peripheral edge of the bottom surface 20 that slopes upward from the center of the hinge C to approximately 90°. In addition, the outer portion of the outer peripheral wall portion 8, which is located outside the slit groove 18 on the rear side, becomes the rear outer wall portion 23, which extends from the bottom surface 20 of the slit groove 18 to the upper surface 8a, and a hinge C is connected to a predetermined position at the upper end of the outer periphery of the rear outer wall portion 23.

[0022] At the upper inner periphery of the outer peripheral wall portion 8, as shown in Figs. 2 and 3(a), from the left side to the center of the back side, a contact surface portion 24 is formed, which slopes inward and upward from above the lower lateral weakened portion 21 and comes into contact with the inclined surface 2a of the fitting protrusion 2 when attached to the container A. From the center of the back side to the right side, as shown in Figs. 2(a), 3(b) and 3(c), above the height of the inclined bottom surface 20, a contact surface portion 24 slopes inward and upward in parallel with the outer surface of the outer connecting portion 22 and comes into contact with the container A. A parallel surface 25 is provided which is formed so as to move away from the inclined surface 2a of the mating protrusion 2 when attached, and the area between the parallel surface 25 and the outer surface of the connecting portion 22 is thinned to form an inclined connecting weakened portion 26, and on the pouring side, an upward recess 27 is recessed from below into the outer peripheral edge of the lower surface of the lid engaging portion 6 within the range of the step recess 15, as shown in Figures 1, 2 and 3(d), and the area between the upward recess 27 and the inclined side surface 15c of the step recess 15 is thinned to form an upper lateral weakened portion 28. The lower lateral weakened portion 21, the inclined connecting weakened portion 26 and the upper lateral weakened portion 28 are formed in succession to form a circumferential tear line.

[0023] As shown in Figures 1 and 2, the lid body D is rotatably attached to the upper outer end of the outer wall portion 8 of the cap body B via a hinge C, and is provided with a top wall 30, a side wall 31 hanging down from the periphery of the top wall 30, and a sealing tube 32 hanging down from the back surface of the top wall 30 and sealing the dispensing tube 5. The top wall 30 is provided with a thin, deformable portion 33 on the outer periphery of the sealing cylinder 32 .

[0024] An engaging recess 35 is provided around the inner periphery of the lower end of the side peripheral wall 31, which engages with the lid engaging protrusion 11 of the lid engaging portion 6 to maintain the lid in a closed state. The engaging recess 35 has an engaging portion 36 on its inward surface that engages with the engaging protrusion 13 of the lid engaging protrusion 11, and the downward surface 35a is configured to abut against the upper surface of the lid engaging protrusion 11 and the upper surface of the back side protrusion 12. In addition, multiple locking protrusions 37 are arranged inside the engaging recess 35 of the side wall 31, except near the center of the pouring side, to abut against the upper inner periphery of the lid engaging protrusion 11 when the lid is closed, preventing the side wall 31 from spreading outward.

[0025] A knob 38 having an arc shape in the circumferential direction is formed on the outer periphery of the side wall 31 at the lower part on the pouring side, and a hinge C is connected to the lower end on the back side. An arc-shaped covering wall 39 is vertically attached to the outer peripheral edge of the pouring side of the underside of the side peripheral wall 31, and is formed so that its lower end is close to or abuts the flat surface 15a of the stepped recess 15 so as to cover the stepped recess 15 of the outer peripheral wall portion 8 of the cap body B when the lid is closed.

[0026] The sealing cylinder 32 has a normal sealing portion a that is inserted into the inner surface of the pouring cylinder 5 when the lid is closed to create a sealed state, and is provided with a lower sealing cylinder 32a whose diameter is reduced on the lower outer periphery of the sealing cylinder 32. The lower sealing cylinder 32a is formed so that when the lid is closed, it is close to or abuts the inner surface of the pouring outlet 4a in the upper wall 4, and another temporary sealing portion b is formed below the sealing portion a between the lower sealing cylinder 32a and the inner surface of the pouring outlet 4a.

[0027] The hinge cap is sealed with two seals, the seal part a and the temporary seal part b, so even if one seal part comes off due to an impact, the other seal part will seal and the contents will not leak. In addition, a space c is provided between the sealed portion a and the temporary sealed portion b, so that when a small amount of liquid contents enters the temporary sealed portion b due to an impact such as when the container A is dropped, the liquid contents can be contained in the space c.

[0028] In order to prevent unauthorized opening of the hinge cap of this embodiment before use, a shrink label or sealing member, etc., may be provided between the cap body B and the lid body D, although this is not shown.

[0029] Next, the manner of use and the effects of this embodiment will be described. The hinge cap of this embodiment is first integrally molded in the state shown in FIG. 2, and then the cover body D is rotated via the hinge C to cover the cap body B, and the cap is closed as shown in FIG.

[0030] At this time, the outer peripheral surface of the lower part of the sealing tube 32 of the lid body D comes into close contact with the inner peripheral surface of the lower part of the dispensing tube 5 of the cap body B to form a seal part a. Furthermore, the engaging recess 35 of the side peripheral wall 31 of the lid body D and the lid engaging protrusion 11 of the lid engaging portion 6 of the cap body B engage with each other, maintaining the lid closed.

[0031] When the hinge cap of this embodiment is closed and sealed, and then a leak test is performed on the sealed seal, air is allowed to flow from below toward the spout 4a of the cap body B, and if there is a problem with the seal between the spout 5 of the cap body B and the sealing tube 32 of the lid body D, the air that has leaked outward from the spout 5 flows between the cutout portion 10, excluding the back side protrusion 12, of the lid engagement portion 6 of the cap body B that abuts against the downward surface 35a of the engagement recess 35 of the lid body D, and the air escapes to the outside from between the inward surface of the engagement recess 35 and the outer surface of the back side protrusion 12, making it easy to determine whether the seal is faulty.

[0032] Next, as shown in FIG. 1, the closed hinge cap is attached to the mouth 1 of the container A filled with the liquid content. In the stoppering process, the mouth 1 of the container A is placed in the annular groove formed between the inner tube 7 and outer wall 8 of the attachment portion 3, and a pressing force is applied from above the lid body D, causing the engaging protrusion 9 of the outer wall 8 to overcome the mating protrusion 2 of the mouth 1 and engage, so that the mouth 1 of the container A is clamped between the outer periphery of the inner tube 7, the inner periphery of the outer wall 8, and the lid engagement portion 6, thereby attaching the container.

[0033] When the hinge cap of this embodiment is applied to a container A filled with hot liquid, the pressure inside the container A rises. However, since the top wall 30 has a deformable thin-walled portion 33 formed on the outside of the sealing tube 32, only the inner side of the thin-walled portion 33 of the top wall 30 rises, releasing the pressure outside the dispensing tube 5. This does not interfere with the engagement between the engagement recess 35 on the side wall 31 of the lid body D and the lid engagement portion 6 of the cap body B, and the lid is maintained closed, preventing the lid body D from opening due to an increase in internal pressure when the liquid is hot. Furthermore, even if an impact force is applied to the top wall 30 of the lid body D when the container is dropped upside down in the closed state, the thin-walled portion 33 absorbs the impact received by the lid body D and the sealing tube 32 is not pushed into or pulled away from the dispensing tube 5, so that the tight contact between the sealing tube 32 and the dispensing tube 5 of the cap body B is not affected, and the sealing tube 32 and the dispensing tube 5 are prevented from coming loose and from damaging each other.

[0034] When using the liquid contents in container A, by placing one's fingers on the handle 38 of lid body D and lifting it, the seal between the sealing tube 32 of lid body D and the dispensing tube 5 of cap body B is released, and the engagement between the side wall 31 of lid body D and the lid engagement part 6 of cap body B is released, lid body D is opened, and by tilting container A toward the dispensing side, the liquid contents in container A can be poured out from the dispensing tube 5 through the pouring outlet 4a of cap body B.

[0035] The hinge cap of this embodiment has a covering wall 39 on the outer peripheral edge of the pouring side of the underside of the side peripheral wall 31 of the lid body D, which hides the stepped recess 15 on the outer peripheral wall portion 8 of the cap body B when the lid is closed, and also prevents fingers placed under the knob portion 38 from hitting and coming into contact with the inside of the lid body D when the lid is opened, thereby keeping the inside of the cap clean.

[0036] By closing the lid body D again on the cap body B, the outer periphery of the sealing tube 32 of the lid body D adheres tightly to the inner periphery of the dispensing tube 5 of the cap body B, forming a seal, thereby sealing the inside of the container A, and the hinge cap can be used by repeatedly opening and closing the lid body D.

[0037] The hinge cap of this embodiment has a stepped recess 15 formed with a flat surface 15a and an inclined surface 15b on the pouring side of the outer wall portion 8 of the cap body B. Therefore, even if the liquid drips from the lip portion 5a of the pouring tube 5 into the lower stepped recess 15 when the container A is tilted during use, the liquid will flow to the flat surface 15a due to the inclination of the inclined surface 15b, and since the flat surface 15a is flat and without any irregularities, dirt can be easily wiped off with tissue or the like.

[0038] Next, a mode in which the hinge cap is separately disposed of after the liquid content in the container A has been used up will be described. In this case, the hinge cap is opened, and the cover body D is grasped with the fingers and pulled outward, which pulls the back outer wall portion 23, which is the connecting portion of the outer wall portion 8 with the hinge C, via the hinge C, pulling and deforming the back side of the connecting outer wall portion 8. As the back side of the outer peripheral wall portion 8 is pulled, the vertical weakened portions 17 formed by the outer peripheral cut portions 16 are broken. When the cover D is further pulled, the lower horizontal weakened portion 21 is cut in the circumferential direction from the end face 16a side connected to the vertical weakened portion 17, and then the continuous inclined connecting weakened portion 26 begins to break. When the lower lateral weakened portion 21 is cut and the fracture of the inclined connecting weakened portion 26 progresses, the lower side of the fractured outer wall portion 8 is separated from the cap body B by the lower lateral weakened portion 21 and the inclined connecting weakened portion 26 of the lid body D and the cap body B connected to it, as shown in Figure 4.

[0039] Next, when the inclined connection weakened portion 26 is completely broken, the continuous upper horizontal weakened portion 28 is broken from the right end, and finally passes through the step recess 15 and is stopped by the thick portion 19. Furthermore, when the broken outer wall portion 8 is pulled, the thick portion 19 of the connected outer wall portion 8 is pulled outward, disengaging the engaging protrusion 9 of the outer wall portion 8 of the cap body B from the engaging protrusion 2 of the mouth portion 1 of the container A, and when the cap body is raised in this state, the upper side and its inner side of the outer wall portion 8 connected by the thick portion 19 are lifted, and the cap body B is removed from the mouth portion 1 of the container A, so that the hinge cap and container A can be disposed of separately.

[0040] In the hinge cap of this embodiment, when the inclined connection weakening portion 26 is cut, it is inclined from bottom to top to match the inclination of the bottom surface 20, so that the force pulling on the lower part of the outer wall portion 8 is directed upward, making it easier to apply force.In addition, since the inner parallel surface 25 forming the inclined connection weakening portion 26 is separated from the inclined surface 2a of the mating protrusion 2 of the container A, there is less resistance to cutting, making it easier to break. Furthermore, when cutting the upper horizontal weakened portion 28 on the pouring side, the upward recess 27 on the inner surface of said portion is completely separated from the inclined surface 2a of the mating protrusion 2 of the container A, thereby further reducing the resistance to cutting and making it easier to break. [Example]

[0041] Next, a second embodiment in which the cap body B and the lid body D of the first embodiment are modified will be described with reference to the drawings. In the following, the same components as those in the first embodiment are given the same reference numerals, and new reference numerals are given to changed components, and the explanation will focus on the differences.

[0042] In FIG. 5, A is a container, Ba is a cap body attached to the container A, and Da is a lid body attached to the cap body Ba via a hinge C so as to be openable and closable. As shown in Figures 5 and 6, the cap body Ba comprises an attachment portion 45 that is attached to the mouth portion 1 of the container A, an upper wall 4 that extends inward from the inner edge of the attachment portion 45 and seals the opening of the mouth portion 1, a pouring outlet 4a that penetrates the upper wall 4, and a pouring tube 5 that is erected on the upper surface of the upper wall 4 and has a diameter slightly larger than that of the pouring outlet 4a.

[0043] The mounting portion 45 is composed of an annular lid engagement portion 6 that engages with the lid body Da, an inner tube 7 that hangs down from the inner side of the lid engagement portion 6, and an outer wall portion 46 whose upper inner periphery is connected to the outer periphery of the lid engagement portion 6.A hinge C is connected to the upper end of the back side of the outer wall portion 46, and an engagement protrusion 9 is provided at the lower inner periphery that engages with the mating protrusion 2 of the mouth portion 1 of the container A.

[0044] The outer peripheral wall portion 46 has an upper surface 46a formed at the same height as the upper surface of the upper wall 4 and the bottom surface of the cutout portion 10, and on the pouring side, a cutout recess 50 is provided in place of the step recess 15 of the first embodiment, recessed in an arc shape from the center to the left and right in a 45° arc range at a distance γ deeper than the distance β of the slit groove 51 from the top to the back side.

[0045] The cutout recess 50 is formed from an outer peripheral surface 50a extending from top to bottom, a curved surface 50b gently curving from the lower end of the outer peripheral surface 50a toward the outer periphery of the outer peripheral wall portion 46, and a side surface 50c extending from both the outer peripheral surface 50a and the curved surface 50b toward the outer peripheral side surface of the outer peripheral wall portion 46. The cutout recess 50 may have an inclined surface, or may have a curved surface and an inclined surface in combination.

[0046] Near the left of the hinge C of the outer wall portion 46, an outer notch 16 that is approximately V-shaped in plan view is cut into the outer surface from the upper surface 46a, leaving a thin-walled bottom wall at the lower end, and a thin-walled vertical weakened portion 17 is formed at a position corresponding to the outer notch 16 of the engaging protrusion 9 on the inner circumference of the outer wall portion 46.

[0047] On the hinge C side of the outer peripheral cutout 16 on the back side of the outer peripheral wall 46, a slit groove 51 is recessed a distance β from the upper surface 46a, starting from a position separated by the thin-walled portion at the upper inner periphery of the end face 16a and extending circumferentially to the right side surface 50c of the cutout recess 50, and further from the left side surface 50c of the cutout recess 50 to the vicinity of the outer peripheral cutout 16.In addition, the upper surface 46a of the outer peripheral cutout 16 of the outer peripheral wall 46 opposite the hinge C forms a thick-walled portion 19 where the upper part of the outer peripheral wall 46 and the lower part of the lid engagement portion 6 are integrally connected.

[0048] A thin-walled lateral weakened portion 53 is formed on the inner upper portion of the bottom surface 52 of the slit groove 51 of the outer peripheral wall portion 46, and the portion outside the slit groove 51 on the back side of the outer peripheral wall portion 46 becomes a back outer wall portion 54 that extends upward from the bottom surface 52 to the upper surface 46a, and a hinge C is connected to a predetermined position at the outer periphery upper end of the back outer wall portion 54.

[0049] The upper inner periphery of the outer wall portion 46 is inclined upward and inward from above the height of the lateral weakened portion 53, forming an abutment surface portion 55 that abuts against the inclined surface 2a of the fitting protrusion 2 when attached to the container A.

[0050] The lid body Da is rotatably attached to the upper outer end of the outer wall portion 46 of the cap body Ba via a hinge C, and is provided with a top wall 30, a side wall 31 hanging down from the periphery of the top wall 30, and a sealing tube 32 hanging down from the back surface of the top wall 30 to seal the dispensing tube 5. An arc-shaped covering wall 60 is vertically attached to the outer peripheral edge of the pouring side of the lower surface of the side peripheral wall 31, and engages with the cutout recess 50 so that its inner surface covers at least the outer peripheral surface 50a of the cutout recess 50 in the outer wall portion 46 of the cap body Ba when the lid is closed.

[0051] Next, the manner of use and the effects of this embodiment will be described. The hinge cap of this embodiment has a covering wall 60 on the outer peripheral edge of the pouring side of the underside of the side peripheral wall 31 of the lid body Da, which hides the cutout recess 50 in the outer peripheral wall portion 46 of the cap body Ba when the lid is closed, and also prevents fingers placed under the knob portion 38 from hitting and coming into contact with the inside of the lid body Da when the lid is opened, thereby keeping the inside of the cap clean.

[0052] The hinge cap of this embodiment has a notched recess 50 with a gently curved curved surface 50b formed on the dispensing side of the outer wall portion 46 of the cap body Ba. Therefore, even if the liquid drips from the lip portion 5a of the dispensing tube 5 into the lower notched recess 50 when the container A is tilted during use, the liquid will flow downward due to the inclination of the curved surface 50b. Furthermore, since the curved surface 50b is a gently curved surface with no unevenness, dirt can be easily wiped off with tissue or the like.

[0053] Next, a mode in which the hinge cap is separately disposed of after the liquid content in the container A has been used up will be described. In this case, when the hinge cap is opened and the lid body Da is grasped with the fingers and pulled outward, the back outer wall portion 54, which is the connecting portion of the outer wall portion 46 to the hinge C, is pulled via the hinge C, and when the connecting vertical weakened portion 17 of the outer wall portion 46 breaks, the horizontal weakened portion 53 is cut in the circumferential direction from the end face 16a side connected to the vertical weakened portion 17, and the part of the outer wall portion 46 below the horizontal weakened portion 53 is separated from the cap body Ba. When the lateral weakened portion 53 passes through the notched recess 50 and is torn up to just before the thick portion 19, the breakage is stopped and the lower part of the connected outer wall portion 46 is pulled outward, disengaging the outer wall portion 46 of the cap body Ba from the mouth portion 1 of the container A, and when the cap body Ba is lifted upward, it is removed from the mouth portion 1 of the container A, and the hinge cap and the container A can be disposed of separately. Other functions and effects are the same as those of the first embodiment. [Example]

[0054] Next, a third embodiment in which the cap body B and the lid body D of the first embodiment are modified will be described with reference to the drawings. In the following, the same components as those in the first embodiment are given the same reference numerals, and new reference numerals are given to changed components, and the explanation will focus on the differences.

[0055] In FIG. 7, A is a container, Bb is a cap body attached to the container A, and Db is a lid body attached to the cap body Bb via a hinge C so as to be openable and closable. As shown in Figures 7 and 8, the cap body Bb comprises an attachment portion 65 that is attached to the mouth portion 1 of the container A, an upper wall 4 that extends inward from the inner edge of the attachment portion 65 and seals the opening of the mouth portion 1, a pouring outlet 4a that penetrates the upper wall 4, and a pouring tube 5 that is erected on the upper surface of the upper wall 4 with a diameter slightly wider than the pouring outlet 4a.

[0056] The mounting portion 65 is composed of an annular lid engagement portion 6 that engages with the lid body Db, an inner tube 7 that hangs down from the inner side of the lid engagement portion 6, and an outer wall portion 66 whose upper inner periphery is connected to the outer periphery of the lid engagement portion 6.A hinge C is connected to the upper end of the back side of the outer wall portion 66, and an engagement protrusion 9 is provided at the lower inner periphery that engages with the mating protrusion 2 of the mouth portion 1 of the container A.

[0057] At the top of the outer peripheral wall portion 66, on the pouring side, there is a stepped recess 70 recessed from the outer periphery in an arc shape over an arc range of approximately 180° to a depth of a distance β from above, and on the remaining back side, the upper surface 66a is flush with the upper surface of the upper wall 4 and the bottom surface of the cutout portion 10, and a hinge C is connected to the upper end of the outer periphery. The stepped recess 70 has a flat surface 70a that is recessed a distance β from the upper surface 66a, and inclined side surfaces 70c that slope from both ends of the flat surface 70a toward both sides of the upper surface 66a.

[0058] An approximately V-shaped outer circumferential notch 16 is cut into the outer circumferential wall portion 66 near the left of the hinge C, and a thin-walled vertical weakened portion 17 is formed at a position corresponding to the outer circumferential notch 16 of the engaging protrusion 9 on the inner periphery of the outer circumferential wall portion 66.

[0059] On the back side of the outer peripheral wall portion 66, a recess is formed that starts from a position separated by the thin-walled portion at the upper inner peripheral side of the end face 16a and extends circumferentially to the inclined side surface 70c on the right end side of the step recess 70, and further from the inclined side surface 70c at the end of the step recess 70 to the vicinity of the outer peripheral cut-out portion 16, and a slit groove 71 is formed at a distance β from the upper surface 66a whose bottom surface 72 is flush with the flat surface 70a of the step recess 70, and further, the upper surface 66a opposite the hinge C of the outer peripheral cut-out portion 16 of the outer peripheral wall portion 66 forms a thick-walled portion 19 that integrally connects the upper part of the outer peripheral wall portion 66 and the lower part of the lid engagement portion 6. In addition, the outer portion of the outer peripheral wall portion 66 on the back side of the slit groove 71 becomes the back outer wall portion 73 which extends upward from the bottom surface 72 of the slit groove 71 to the upper surface 66a, and a hinge C is connected to a predetermined position at the upper end of the outer periphery of the back outer wall portion 73.

[0060] The outer wall portion 66 has a thin-walled lateral weakening portion 74 on the inner upper side of the bottom surface 72 of the slit groove 71 from the end face 16a side to the center of the hinge C, and an arc-shaped connecting portion 75 that slopes upward and inward is provided on the inner edge connecting the center of the hinge C of the bottom surface 72 of the slit groove 71 to the flat surface 70a of the step recess 70 (a 270° arc range from the center of the hinge C to the right).

[0061] At the upper inner periphery of the outer wall portion 66, from the left side to the center of the back side, a contact surface portion 76 is formed which slopes inward and upward from above the lateral weakening portion 74 and comes into contact with the inclined surface 2a of the mating protrusion 2 when attached to container A, and from the center of the back side to the right side, through the pouring side to the left side, a parallel surface 77 is provided which slopes inward and upward parallel to the outer surface of the outer connecting portion 75 and is formed so as to move away from the inclined surface 2a of the mating protrusion 2 when attached to container A, and the portion between the parallel surface 77 and the outer surface of the connecting portion 75 is thin-walled to form a connecting weakening portion 78. The lateral weakened portion 74 and the connecting weakened portion 78 are formed so as to be continuous with each other.

[0062] The lid body Db has an arc-shaped covering wall 80 that is attached vertically to the outer peripheral edge of the pouring side of the lower surface of the side peripheral wall 31, and is formed so that when the lid is closed, its lower surface is close to or abuts the flat surface 70a of the stepped recess 70 of the outer peripheral wall portion 66 of the cap body Bb and the outer peripheral edges of the inclined side surfaces 70c on both sides.

[0063] Next, the manner of use and the effects of this embodiment will be described. The hinge cap of this embodiment has a covering wall 80 on the outer peripheral edge of the pouring side of the underside of the side peripheral wall 31 of the lid body Db, which hides the stepped recess 70 on the outer peripheral wall portion 66 of the cap body Bb when the lid is closed, and also prevents fingers placed under the handle portion 38 from hitting and coming into contact with the inside of the lid body Db when the lid is opened, thereby keeping the inside of the cap clean.

[0064] The hinge cap of this embodiment has a stepped recess 70 formed with a flat surface 70a and a connecting portion 75 on the dispensing side of the outer wall portion 66 of the cap body Bb. Therefore, even if the liquid drips from the lip portion 5a of the dispensing tube 5 into the lower stepped recess 70 when the container A is tilted during use, the liquid will flow to the flat surface 70a due to the inclination of the connecting portion 75, and since the flat surface 70a is flat and has no irregularities, dirt can be easily wiped off with tissue or the like.

[0065] Next, a mode in which the hinge cap is separately disposed of after the liquid content in the container A has been used up will be described. In this case, when the hinge cap is opened and the lid body Db is grasped with the fingers and pulled outward, the back outer wall portion 73, which is the connecting portion of the outer wall portion 66 to the hinge C, is pulled via the hinge C, and when the connecting vertical weakened portion 17 of the outer wall portion 66 breaks, the horizontal weakened portion 74 is cut in the circumferential direction from the end face 16a side connected to the vertical weakened portion 17, and the part of the outer wall portion 66 below the horizontal weakened portion 74 is separated from the cap body Bb.

[0066] Next, when the lateral weakened portion 74 is completely broken, the continuous connecting weakened portion 78 breaks from the center of the hinge C, and finally passes through the stepped recess 70 and is stopped by the thick portion 19. Furthermore, when the broken outer wall portion 66 is pulled, the thick portion 19 of the connected outer wall portion 66 is pulled outward, disengaging the engaging protrusion 9 of the outer wall portion 66 of the cap body Bb from the engaging protrusion 2 of the mouth portion 1 of the container A, and when the cap body Bb is raised upward, the upper side and its inner side of the outer wall portion 66 connected by the thick portion 19 are lifted, and the cap body Bb is removed from the mouth portion 1 of the container A, so that the hinge cap and container A can be disposed of separately.

[0067] In the hinge cap of this embodiment, when the connection weakening portion 78 is cut, the parallel inner surface 77 forming the connection weakening portion 78 moves away from the inclined surface 2a of the mating protrusion 2 of the container A, so there is less resistance to cutting and it is easier to break. Other functions and effects are the same as those of the first embodiment. [Example]

[0068] Next, a fourth embodiment in which the cap body B and the lid body D of the first embodiment are modified will be described with reference to the drawings. In the following, the same components as those in the first embodiment are given the same reference numerals, and new reference numerals are given to changed components, and the explanation will focus on the differences.

[0069] In FIG. 9, A is a container, Bc is a cap body attached to the container A, and Dc is a lid body attached to the cap body Bc via a hinge C so as to be openable and closable. As shown in Figures 9 and 10, the cap body Bc comprises an attachment portion 85 that is attached to the mouth portion 1 of the container A, an upper wall 4 that extends inward from the inner edge of the attachment portion 85 and seals the opening of the mouth portion 1, a pouring outlet 4a that penetrates the upper wall 4, and a pouring tube 5 that is erected on the upper surface of the upper wall 4 with a diameter slightly wider than the pouring outlet 4a.

[0070] The mounting portion 85 is composed of an annular lid engagement portion 6 that engages with the lid body Dc, an inner tube 7 that hangs down from the inner side of the lid engagement portion 6, and an outer wall portion 86 whose upper inner periphery is connected to the outer periphery of the lid engagement portion 6.A hinge C is connected to the upper end of the back side of the outer wall portion 86, and an engagement protrusion 9 is provided at the lower inner periphery that engages with the mating protrusion 2 of the mouth portion 1 of the container A.

[0071] At the top of the outer peripheral wall portion 86, on the pouring side, there is a stepped recess 90 recessed from the outer periphery in an arc shape over an arc range of approximately 180° to a depth of a distance α from above, and on the remaining back side, the upper surface 86a is flush with the upper surface of the upper wall 4 and the bottom surface of the cutout portion 10, and a hinge C is connected to the upper end of the outer periphery. The stepped recess 90 has a flat surface 90a that is recessed from the upper surface 86a by a distance α, and inclined side surfaces 90c that slope from both ends of the flat surface 90a toward both sides of the upper surface 86a.

[0072] An approximately V-shaped outer circumferential notch 16 is cut into the outer circumferential wall portion 86 near the left of the hinge C, and a thin-walled vertical weakened portion 17 is formed at a position corresponding to the outer circumferential notch 16 of the engaging protrusion 9 on the inner periphery of the outer circumferential wall portion 86.

[0073] On the back side of the outer peripheral wall portion 86, a recess is formed that starts from a position separated by the thin-walled portion at the upper inner peripheral side of the end face 16a and extends circumferentially to the inclined side surface 90c on the right end side of the step recess 90, and further from the inclined side surface 90c at the end of the step recess 90 to the vicinity of the outer peripheral cut-out portion 16, and a slit groove 91 is formed at a distance α from the upper surface 86a whose bottom surface 92 is flush with the flat surface 90a of the step recess 90, and further, the upper surface 86a of the outer peripheral wall portion 86 opposite the hinge C of the outer peripheral cut-out portion 16 forms a thick-walled portion 19 that integrally connects the upper part of the outer peripheral wall portion 86 and the lower part of the lid engagement portion 6. In addition, the outer portion of the outer peripheral wall portion 86, located outside the slit groove 91 on the rear side, becomes the rear outer wall portion 93, which extends upward from the bottom surface 92 of the slit groove 91 to the upper surface 86a, and a hinge C is connected to a predetermined position at the upper end of the outer periphery of the rear outer wall portion 93.

[0074] The outer wall portion 86 has a thin-walled lateral weakening portion 94 on the inner upper side of the bottom surface 92 of the slit groove 91 from the end face 16a side to the center of the hinge C, and an arc-shaped connecting portion 95 is provided on the inner edge connecting from the center of the hinge C of the bottom surface 92 of the slit groove 91 to the flat surface 90a of the step recess 90 (a 270° arc range from the center of the hinge C to the right side) that slopes upward toward the inside to the height of the upper surface 86a.

[0075] An upward recess 96 is recessed into the upper inner periphery of the outer wall portion 86, on the outer peripheral edge of the lower surface of the lid engagement portion 6, and the area between the inner surface of the upward recess 96 and the outer surface of the connecting portion 95 is thinned to form a connection weakening portion 97. The lateral weakened portion 94 and the connecting weakened portion 97 are formed so as to be continuous with each other.

[0076] The lid body Dc has an arc-shaped covering wall 100 that is vertically attached to the outer peripheral edge of the pouring side of the lower surface of the side peripheral wall 31, and is formed so that when the lid is closed, its lower surface is close to or abuts the flat surface 90a of the stepped recess 90 of the outer peripheral wall portion 86 of the cap body Bc and the outer peripheral edges of the inclined side surfaces 90c on both sides.

[0077] Next, the manner of use and the effects of this embodiment will be described. The hinge cap of this embodiment has a covering wall 100 provided on the outer peripheral edge of the pouring side of the underside of the side peripheral wall 31 of the lid body Dc, which hides the stepped recess 90 on the outer peripheral wall portion 86 of the cap body Bc when the lid is closed, and also prevents fingers placed under the knob portion 38 from hitting and coming into contact with the inside of the lid body Dc when the lid is opened, thereby keeping the inside of the cap clean.

[0078] The hinge cap of this embodiment has a stepped recess 90 formed with a flat surface 90a and a connecting portion 95 on the dispensing side of the outer wall portion 86 of the cap body Bc. Therefore, even if the liquid drips from the lip portion 5a of the dispensing tube 5 into the lower stepped recess 90 when the container A is tilted during use, the liquid will flow to the flat surface 90a due to the inclination of the connecting portion 95, and since the flat surface 90a is flat and without any irregularities, dirt can be easily wiped off with tissue or the like.

[0079] Next, a mode in which the hinge cap is separately disposed of after the liquid content in the container A has been used up will be described. In this case, when the hinge cap is opened and the lid body Dc is grasped with the fingers and pulled outward, the back outer wall portion 93, which is the connecting portion of the outer wall portion 86 to the hinge C, is pulled via the hinge C, and when the connecting vertical weakened portion 17 of the outer wall portion 86 breaks, the horizontal weakened portion 94 is cut circumferentially from the end face 16a side connected to the vertical weakened portion 17, and the part of the outer wall portion 86 below the horizontal weakened portion 94 is separated from the cap body Bc.

[0080] Next, when the lateral weakened portion 94 is completely broken, the continuous connecting weakened portion 97 breaks from the center of the hinge C, passes through the stepped recess 90, and is stopped by the thick portion 19. Furthermore, when the broken outer wall portion 86 is pulled, the thick portion 19 of the connected outer wall portion 86 is pulled outward, disengaging the engaging protrusion 9 of the outer wall portion 86 of the cap body Bc from the engaging protrusion 2 of the mouth portion 1 of the container A, and when the cap body Bc is raised in this state, the upper side and its inner side of the outer wall portion 86 connected by the thick portion 19 are lifted, and the cap body Bc is removed from the mouth portion 1 of the container A, so that the hinge cap and container A can be disposed of separately.

[0081] In the hinge cap of this embodiment, when the weakened connection portion 97 is cut, the upward recess 96 on the inner surface of that portion is completely separated from the inclined surface 2a of the mating protrusion 2 of the container A, so there is less resistance to cutting and it is easier to break. Other functions and effects are the same as those of the first embodiment. [Industrial Applicability]

[0082] The hinge cap of the present invention is suitable as a hinge cap for containers for storing food, etc., because even if the liquid drips onto the pouring side of the cap body when the contents are poured, the dripping liquid can be easily wiped off, and it can be easily separated from the container when the container is disposed of. [Explanation of symbols]

[0083] A container B, Ba, Bb, Bc cap body C hinge D, Da, Db, Dc lid body a Seal part b Temporary seal c space α, β, γ distances 1 Mouth 2 Mating ridges 2a Slope 3, 45, 65, 85 mounting part 4 Upper wall 4a spout 5 Pour tube 5a Lip 6 Lid engaging part (base wall part) 7 Inner cylinder 8, 46, 66, 86 outer wall 8a, 46a, 66a, 86a top 9 Engagement protrusion 10 Cutout 11 Lid engaging protrusion 12 Rear protrusion 13 Locking ridge 15, 70, 90 step recess 15a, 70a, 90a flat surface 15b Slope 15c, 70c, 90c sloped sides 16 Peripheral notch 16a End face 17 Vertical weakened area (longitudinal tear line) 18, 51, 71, 91 Slit groove 19 Thick part 20, 20a, 20b, 20c, 52, 72, 92 bottom 21 Lower horizontal weakened area (circumferential tear line) 22, 75, 95 connection part 23, 54, 73, 93 Rear outer wall 24, 55, 76 Contact surface part 25, 77 parallel surfaces 26 Inclined joint weakened section (circumferential tear line) 27, 96 upward recess 28 Upper horizontal weakened area (circumferential tear line) 30 Top Wall 31 Side wall 32 Closed Envelope 32a Lower seal tube 33 Thin-walled section 35 Engagement recess 35a Downward Face 36 Locking part 37 Locking convex piece 38 Knob 39, 60, 80, 100 coated wall 50 Notched recess (step recess) 50a Outer surface 50b curved surface 50c side 53, 74, 94 Lateral weakened area (circumferential tear line) 78, 97 Weakened joints (circumferential tear lines)

Claims

1. A hinge cap comprising a cap body to be attached to a container and a lid body attached to the cap body via a hinge, The cap body has an inner tube and an outer peripheral wall portion that are vertically disposed across the mouth of the container, and a base wall portion that is connected to the inner tube and the outer peripheral wall portion, The outer peripheral wall portion has a notched recess that is recessed from the top surface downward in an arc shape within a predetermined arc range to the left and right from the center of the pouring side, a rear outer wall portion that is erected in an arc range other than the notched recess along the outer periphery direction of the hinge side, and a slit groove that is formed between the rear outer wall portion and the notched recess and whose bottom surface is continuous with the notched recess, The hinge cap is characterized in that the lid body has a top wall, a side wall extending from the periphery of the top wall, and a covering wall extending from the pouring side of the side wall and covering the cutout recess.

2. A hinge cap as described in Claim 1, characterized in that the cutout recess has an outer peripheral surface extending from top to bottom and a curved surface curving from the lower end of the outer peripheral surface toward the outer periphery of the outer wall portion.

3. 3. The hinge cap according to claim 1, wherein the slit groove has a constant depth from the upper surface of the rear outer wall portion.

4. The hinge cap according to any one of claims 1 to 3, characterized in that the outer wall portion has a separation mechanism consisting of a vertical tear line formed vertically from the vicinity of the hinge toward the bottom surface of the slit groove, and a circumferential tear line formed from the vertical tear line along the bottom surface of the slit groove.

Images