JP7123753B2 - hinge cap - Google Patents

Description

According to the present invention, the hinge cap fitted to the mouth of the container, particularly the outer cylindrical portion of the cap body fitted to the mouth of the container, is broken after use of the container so that it can be discarded separately from the container. It relates to hinge caps.

Conventionally, as hinge caps that can be separated and discarded, various structures have been proposed for breaking the fitting cylinder attached to the mouth of the container and removing it from the container for disposal, but the fitting cylinder is small. As a hinge cap that can be easily broken by force, by forming a vertical notch and a slit groove drilled in the circumferential direction in the outer cylinder of the fitting cylinder, it can be torn in the circumferential direction from the vertical tear line. A hinge cap for separate disposal has been proposed that has a thin weakened portion that is continuous with a line and that can be easily removed from a container by breaking the thin weakened portion (see, for example, Patent Document 1).

JP 2012-153429 A

However, in the hinge cap for separate disposal described in Patent Document 1, since the outer peripheral cut portion 30 forming the vertical tear line is provided on the outer peripheral surface of the outer cylinder 12, when sorting and discarding, the peripheral tear line It was necessary to break the longitudinal tear line before breaking the .
Therefore, when separating the hinge cap from the container, the outer cylinder needs to be broken in two steps of tearing in the longitudinal direction and tearing in the circumferential direction.

An object of the present invention is to solve the above-mentioned problems, and a cap provided with an outer peripheral cylindrical portion formed with horizontal ribs and a weakened portion that can be broken only by the circumferential tear line by eliminating the vertical tear line for separate disposal. In the above, an object of the present invention is to provide a hinge cap capable of easily starting to tear the tear line in the circumferential direction.

In order to solve the above problems, the present invention provides a hinge cap comprising a cap body fitted to the mouth of a container and a lid attached to the cap body via a hinge so as to be openable and closable. The cap main body has a mounting tubular portion fitted to the mouth portion, and an outer peripheral tubular portion continuous from the outer circumference of the mounting tubular portion with a certain gap therebetween, and the outer peripheral tubular portion extends in the vertical direction. It has a separation end formed on one end side with the separation part as a boundary, and a connection part to which the mounting cylinder part is connected to the other end side, and the separation end part is provided between the mounting cylinder part and the outer peripheral cylinder part and a weakening piece formed so as to be breakable in the circumferential direction from the terminal end of the horizontal rib.

As an embodiment of the hinge cap, the separation part is formed in the vicinity of either the left or right of the hinge attached to the outer peripheral upper end of the outer peripheral cylindrical part, and the separated end is formed on the inner peripheral side. and has a projecting piece that abuts or approaches the mounting cylinder.

As a specific embodiment of the hinge cap, the lateral rib is formed in an intermediate portion between the mounting tube portion and the outer peripheral tube portion, and the weakening piece is formed between the mounting tube portion and the outer peripheral tube portion. A configuration characterized by being formed at the lower end between

In the hinge cap of the present invention, the cap main body has an outer cylindrical portion that is continuous with a certain gap from the outer periphery of the mounting cylindrical portion that fits into the mouth portion, and the outer cylindrical portion is a vertical separation portion. a separation end formed on one end side and a connection portion to which the mounting cylinder is connected to the other end side, and at least from the separation end between the mounting cylinder part and the outer peripheral cylinder part, By having a horizontal rib formed over the range of the hinge and a weakened piece formed to be tearable in the circumferential direction from the terminal end of the horizontal rib, there is no need to provide a vertical tear line when sorting and disposing of the cap body. The hinge cap can be easily separated from the container by forming a circumferential tearing line that can tear the outer peripheral cylindrical portion of the container in the circumferential direction.

FIG. 4 is a view showing a closed state of a hinge cap according to an embodiment of the present invention, where (a) is a side cross-sectional view and (b) is a cross-sectional view taken along the line XX of (a). FIG. 3 is a perspective view showing an opened state of the hinge cap of the embodiment of the present invention; FIG. 3 is a diagram showing an open lid state with the inner plug member of a hinge cap according to an embodiment of the present invention removed, (a) being a top view, (b) being a side cross-sectional view, and (c) being Y-axis of (a). It is a Y-line arrow directional cross-sectional view. It is a figure which shows the inner plug member of the hinge cap which is an Example of this invention, (a) is a top view, (b) is side sectional drawing, (c) is a bottom view. FIG. 4 is a top view showing the process of tearing and breaking the hinge cap when separating the hinge caps of the embodiment of the present invention, where (a) is a view showing the start state of breaking the horizontal ribs, and (b) is breaking of the horizontal ribs. FIG. 13 illustrates the end state;

Next, the hinge cap of the present invention will be described with reference to the drawings showing the embodiments.
In the following description, referring to FIG. 1, the left direction is defined as "front (side opposite to hinge)", the right direction is defined as "back (hinge side)", the upward direction is defined as "up", and the downward direction is defined as ""down".

In FIG. 1, A is a cap body fitted to the mouth 1 of a container E, B is a lid body attached to the cap body A via a hinge C so as to be openable and closable, and D is fitted inside the cap body A. It is an inner plug member that is used.
The container E has a mouth portion 1 on its upper portion, and a fitting ridge 2 is provided on the outer peripheral surface of the mouth portion 1 .

As shown in FIGS. 1 to 3, the cap main body A includes a mounting cylinder portion 3 mounted on the outer periphery of the mouth portion 1 of the container E, and an upper portion of the mounting cylinder portion 3 extending inwardly and having an open center. A base wall 4, a pouring tube 5 erected from the base wall 4, and a fitting tube 6 extending from the lower end of the pouring tube 5 toward an inner opening and fitted with an inner plug member D. , and an outer peripheral tube portion 7 that is connected to the outer periphery of the mounting tube portion 3 with a certain gap therebetween.

The mounting cylinder part 3 has a height equivalent to the lower end part of the lid body B, which will be described later, and is bounded by an inflection point 3a where the shape of the outer peripheral surface starts to curve, and the upper part is engaged with the lid body B when the lid is closed. An engaging portion 8 is provided, and a mounting outer cylindrical portion 9 is provided below the inflection point 3a.
The lid engaging portion 8 has a lid engaging protrusion 10 that engages with the lid body B to keep the lid closed.

An inner peripheral engagement convex portion 11 for attaching an inner plug member D, which will be described later, is provided on the upper inner peripheral portion of the mounting outer cylindrical portion 9, and a lower inner peripheral portion of the mounting outer cylindrical portion 9 is provided for the container E after capping. A fitting protrusion 12 is provided with which the lower portion and the upper portion of the fitting ridge 2 of the mouth portion 1 are engaged.
The fitting cylinder 6 has a fitting projection 13 that fits with the inner plug member D in the circumferential direction of the lower inner periphery.

As shown in FIG. 2, in the vicinity of either the left or right of the hinge C attached to the upper end of the outer periphery of the outer cylindrical portion 7, a substantially V-shaped cut is made from the outer peripheral surface of the outer cylindrical portion 7 in a plan view, A vertical separating portion 14 is provided.
The outer peripheral cylindrical portion 7 has a separation end portion 15 formed as an end surface in the vertical direction on one end side 7a on the hinge C side with the separation portion 14 as a boundary, and the separation end portion 15 has a protruding piece 15a on the inner peripheral side. It is formed so as to abut or be close to the outer peripheral surface of the mounting outer cylinder portion 9 .
Further, the outer cylindrical portion 7 is provided with a terminal connecting portion 16 to which the mounting outer cylindrical portion 9 is integrally connected to the other end side 7b opposite to the hinge C with the separation portion 14 as a boundary.

Between the outer circumference of the mounting outer cylinder part 9 (mounting cylinder part 3) and the inner circumference of the outer circumference cylinder part 7, the vicinity of the separation end 15 is the starting point, and at least the range of the hinge C (hinge C region, in this embodiment). A horizontal rib 17 is formed over an angle of about 70°), and a plurality of breakable weakening pieces 19 are formed circumferentially spaced apart from the terminal end of the horizontal rib 17 to form a circumferential tear line.
The lateral ribs 17 need to be formed at least in the hinge C region, but may be provided extending in the circumferential direction.
In this embodiment, the horizontal ribs 17 are formed continuously horizontally, but they may be formed in plural at intervals, and may be formed not only horizontally but also obliquely.
In this embodiment, a plurality of weakened pieces 19 are formed at intervals in the circumferential direction, but may be formed continuously in the circumferential direction. Also, the weakened piece 19 is formed at the lower end portion between the outer circumference of the mounting outer cylinder portion 9 and the inner circumference of the outer cylinder portion 7, but the position of the weakened piece 19 may be other than the lower end portion. do not have.

The lateral ribs 17 are preferably formed in the vertical intermediate portion between the outer periphery of the mounting outer cylindrical portion 9 and the inner periphery of the outer peripheral cylindrical portion 7, but the position of the lateral ribs 17 may be other than the intermediate portion. I don't mind.
Further, when the lateral rib 17 is provided in the intermediate portion between the mounting outer cylinder portion 9 and the outer cylinder portion 7 in the hinge C region, the hinge cap is easily broken when separated, but the strength in the opening and closing direction of the hinge C is reduced. Furthermore, when molding the hinge cap, the flow of the resin from the mounting outer cylinder portion 9 to the lid body B through the outer cylinder portion 7 and the hinge C is improved, and the moldability of the hinge cap is improved. can.

Furthermore, as shown in FIG. 3(c), an unbreakable connecting portion 18 provided adjacent to the end connecting portion 16 is provided between the lower end portion of the outer periphery of the mounting outer cylindrical portion 9 and the inner periphery of the outer cylindrical portion 7. are connected via
In this embodiment, the connecting portion 18 forms a slit-shaped groove between the outer cylindrical portion 7 and the mounting outer cylindrical portion 9 in top view. This groove may be filled and integrated with the termination connecting portion 16, or the groove may be shallow.

The lid B is rotatably attached to the outer peripheral upper end portion of the outer peripheral cylindrical portion 7 of the cap main body A via a hinge C. The lid B includes a top wall 20 and a peripheral portion of the top wall 20. The top wall 20 has a side peripheral wall 21 extending vertically from the top wall 20 and having a hinge C connected to the outer periphery of the lower end thereof. .

An engaged portion 23 that engages with the lid engaging portion 8 of the mounting cylinder portion 3 of the cap main body A is formed at the inner peripheral lower portion of the side peripheral wall 21, and the side peripheral surface of the engaged portion 23 has a lid. An engagement recess 24 that fits with the engagement protrusion 10 is provided.
In addition, a knob 25 is provided on the front side (on the side opposite to the hinge C) of the outer peripheral lower portion of the side peripheral wall 21 .

As shown in FIG. 4, the inner plug member D includes a central partition wall portion 30 for closing an opening formed in the base wall 4 of the cap main body A, and an outer edge of the partition wall portion 30. 1 and a flange portion 32 extending radially outward from the upper portion of the outer periphery of the inner cylinder portion 31 .

The partition wall 30 is formed with a V-shaped outlet 33 in plan view that opens on the side opposite to the hinge C, and a circular air inlet 34 that opens on the hinge C side.
In this embodiment, a seal S is attached to the upper surface of the partition wall 30 to seal the outlet 33 and the air inlet 34 opened in the partition wall 30 .

The seal S is formed of a vapor-deposited aluminum film or the like, and is detachably adhered to the upper surface of the partition wall portion 30 by an adhesive or heat-sealing. Sa and the like are provided.
In addition, the knob Sa is set in a state of standing obliquely upward from the side opposite to the hinge C. As shown in FIG.
A positioning protrusion 35 is formed on the hinge C side of the lower end portion of the inner cylindrical portion 31 to serve as a mark when the inner plug member D is attached to the cap main body A. As shown in FIG.

The flange portion 32 is formed in a hook shape having a base ring portion 43 formed annularly from the outer peripheral upper portion of the inner cylindrical portion 31 toward the outside in the radial direction and a space a downward from the outer edge of the base ring portion 43 in cross section. and a pressing portion 47 .
The pressing portion 47 includes a vertical wall 44 rising upward from the outer edge of the base ring portion 43 , an upper wall 45 projecting radially outward from the upper end of the vertical wall 44 , and a hem extending downward from the outer edge of the upper wall 45 . The cross-sectional shape as a whole is hook-shaped.

The top surface of the upper wall 45 of the pressing portion 47 is in contact with the lower surface of the base wall 4 of the cap main body A, and the side peripheral surface of the inclined portion 46 is in contact with the inner peripheral surface of the lid engaging portion 8 of the mounting cylinder 3. there is
On the other hand, although the lower end of the inclined portion 46 may abut against the inner peripheral engaging protrusion 11, it is preferable that there is a slight gap between the inner peripheral engaging protrusion 11 and the lower end of the inclined portion 46. , the pressing portion 47 can be easily attached to the cap main body A.
A fitting groove 40 that fits with the fitting projection 13 of the fitting cylinder 6 is formed in the outer peripheral lower portion of the partition wall portion 30 .
In this embodiment, the pressing portion 47 is formed in an annular shape over the entire circumference, but the pressing portion 47 may be formed by notching intermittently.

Next, the mode of use and effects of this embodiment will be described.
For the hinge cap of this embodiment, first, the inner plug member D with the seal S adhered to the upper surface of the partition wall portion 30 is attached to the cap main body A with the positioning protrusion 35 aligned with the hinge C side.

At this time, as shown in FIG. 1(a), in the inner plug member D, a fitting groove 40 provided around the lower outer periphery of the partition wall portion 30 is provided around the lower inner periphery of the fitting tube 6. The pressing portion 47 of the flange portion 32 is fitted with the fitting ridge 13 and has a hook-like cross section with a space a below. When fitting to the inner peripheral surface of the lid engaging portion 8 , the side peripheral surface of the inclined portion 46 is deformed toward the space a, and the side peripheral surface of the inclined portion 46 can climb over the inner peripheral engaging convex portion 11 of the mounting outer cylinder portion 9 .
After that, the flange portion 32 of the inner plug member D is prevented from coming off by the inner peripheral engagement convex portion 11 .

Next, the closed hinge cap is attached to the opening 1 of the container E filled with the content liquid by plugging.
In the plugging step, the mouth portion 1 of the container E is applied to an annular groove formed between the inner cylindrical portion 31 of the inner plug member D and the mounting outer cylindrical portion 9 of the cap main body A, and the lid B is pressed from above. Apply pressure.
At that time, the fitting protrusion 12 of the mounting outer cylinder part 9 rides on the fitting projection 2 of the mouth part 1 and tries to push the mounting cylinder part 3 outward from below, but the mounting cylinder part 3 is When the mounting outer cylindrical portion 9 is deformed and expanded more than the lid engaging portion 8 and the fitting protrusion 12 overcomes the fitting protrusion 2, the deformed mounting outer cylindrical portion 9 returns to its original state. Restore.
At the same time, the inner cylindrical portion 31 of the inner plug member D is inserted into the inner circumference of the mouth portion 1 while the lower portion of the outer peripheral surface of the inner cylindrical portion 31 rides on the upper end of the inner circumference of the mouth portion 1 and the inner cylindrical portion 31 is deformed inward.

The lid engaging portion 8 of the mounting tube portion 3 is pressed against the inner peripheral surface by the inclined portion 46 of the pressing portion 47 of the flange portion 32 of the inner plug member D to return to its original shape. Since the shape retention property is maintained, it is possible to prevent the lid engaging portion 8 from being pulled by the deformation of the mounting outer cylinder portion 9 and deformed inward due to the impact of plugging. It does not affect the fitting of the peripheral wall 21 with the engaged portion 23 as a whole.
Moreover, since the mounting outer cylindrical portion 9 is formed to be thinner than the lid engaging portion 8 and is easily deformed, the pressing force at the time of plugging can be reduced as compared with the conventional case.

Finally, the upper surface of the mouth portion 1 of the container E comes into contact with the bottom surface of the base ring portion 43 of the flange portion 32, and the capping process is completed.
At the end of capping, the restoring force of the mounting outer cylindrical portion 9 of the cap main body A causes the inner periphery of the mounting outer cylindrical portion 9 and the fitting protrusion 12 to come into close contact with the outer periphery of the mouth portion 1 of the container E and the fitting protrusion 2. do.
In addition, the inner cylindrical portion 31 of the inner plug member D has a tight fit due to the restoring force that tends to return outward and the pressure that the fitting projection 13 of the fitting tube 6 of the cap main body A abuts against the fitting groove 40 . is increased, and deformation of the lower portion of the inner cylindrical portion 31 inward can be prevented.

When using the liquid in the container E, put a finger on the tab 25 to open the lid B of the hinge cap, and pinch the seal S attached to the upper surface of the partition wall 30 of the inner plug member D. The part Sa is pinched with fingers, the seal S is peeled off from the partition wall 30, and the outlet 33 and the air inlet 34 formed in the partition wall 30 are unsealed.
Next, by tilting the container E in the pouring direction (front side), the content liquid in the container E can be easily poured out from the pouring port 33 through the pouring tube 5 of the cap main body A.
After use, by closing the lid B again, the sealing ring 22 of the lid B is inserted into the inner periphery of the pouring cylinder 5 of the cap body A, and the inside of the cap body A can be sealed, thereby forming a hinge cap. Even after the package is opened, the lid B can be repeatedly opened and closed for use.

The hinge cap of the present invention can be separated from the mouth portion 1 of the container E and discarded after all the liquid in the container E is used.
At that time, when the lid body B of the hinge cap is opened, and the lid body B is grasped with fingers and pulled in the radial direction of the cap body A, the outer peripheral cylindrical portion 7 of the cap body A is separated from the hinge of the separating portion 14. Since the protruding piece 15a of the separation end portion 15 formed on the one end side 7a, which is the C side, is not connected to the outer peripheral surface of the mounting outer cylinder portion 9, as shown in FIG. , simply deforms outwardly from the separation end 15, whereby the transverse rib 17 begins to break from the separation 14 side.

As shown in FIG. 5B, when the cover B is further pulled in the circumferential direction of the cap main body A after the breaking of the lateral ribs 17 is completed, the outer cylindrical portion 7 is intermittently attached to the mounting outer cylindrical portion 9. It is pulled apart while breaking the weakened piece 19 that is arranged on the outside, and then pulled up through the connecting part 18 on the other end side 7b of the separation part 14 opposite to the hinge C, and the mounting cylinder part 3 is removed from the mounting. When the cylindrical portion 9 is pulled and deformed to disengage from the container E and the mounting cylindrical portion 3 is pulled upward, the inclined portion of the pressing portion 47 having a hook-shaped cross section of the inner plug member D is formed. 46 tries to return to its original shape and opens outward to follow the movement of the mounting cylinder 3 and maintain the fitted state, so that the inner plug member D is also pulled up, and the inner plug member D is pulled up together with the cap main body A. It can be separated from the mouth portion 1 of the container E.

In this embodiment, in the hinge cap, the cap main body A and the inner plug member D are separate bodies, but the cap main body and the inner plug member are formed integrally, and the mounting cylinder portion is formed of the outer cylinder portion and the inner cylinder. It may be a hinge cap having a portion.
In this embodiment, the seal S is attached to the upper surface of the partition wall portion 30 of the inner plug member D to close the pouring port 33 and the air introduction port 34 opened in the partition wall portion 30. , and the partition may be unplugged with a pull ring or the like to open the spout in the partition.

The hinge cap of the present invention does not need to provide a vertical tear line as in the conventional art, by forming a circumferential tear line that can tear the outer cylindrical portion of the cap body in the circumferential direction when sorting and discarding. , it is easy to use and can be widely used as a hinge cap for food containers and the like.

A Cap body B Lid body C Hinge D Inner plug member E Container S Seal Sa Knob part a Space 1 Mouth part 2 Fitting rib 3 Mounting cylinder part 3a Inflection point 4 Base wall 5 Extraction cylinder 6 Fitting cylinder 7 Periphery Cylindrical portion 7a One end side 7b Other end side 8 Lid engaging portion 9 Mounting outer cylinder portion 10 Lid engaging projection 11 Inner peripheral engaging projection 12 Fitting projection 13 Fitting projection 14 Separation portion 15 Separation end 15a Protruding piece 16 Terminal connecting portion 17 Horizontal rib 18 Connecting portion 19 Weakening piece 20 Top wall 21 Side peripheral wall 22 Sealing ring 23 Engaged portion 24 Engaging concave portion 25 Grip piece 30 Partition wall portion 31 Inner cylindrical portion 32 Flange portion 33 Spout 34 Air inlet 35 Positioning protrusion 40 Fitting groove 43 Base ring portion 44 Vertical wall 45 Upper wall 46 Inclined portion 47 Pressing portion

Claims (5)

A hinge cap comprising a cap body fitted to the mouth of a container and a lid body attached to the cap body via a hinge so as to be openable and closable,
The cap main body has a mounting tubular portion that fits into the mouth portion, and an outer peripheral tubular portion that is continuous from the outer periphery of the mounting tubular portion with a certain gap,
The outer cylindrical portion has a separated end portion formed on one end side and a connecting portion to which the mounting cylindrical portion is connected on the other end side with the separation portion in the vertical direction as a boundary,
Between the mounting tube part and the outer peripheral tube part, there is provided a horizontal rib formed over at least the range of the hinge from the separated end, and a weakening piece formed so as to be broken in the circumferential direction from the terminal end of the horizontal rib. Featured hinge cap. 2. The hinge cap according to claim 1, wherein the separating portion is formed in the vicinity of either the left or right side of the hinge attached to the upper end of the outer periphery of the outer cylindrical portion. 3. The hinge cap according to claim 1, wherein the separated end portion has a protruding piece formed on the inner peripheral side and abutting on or close to the mounting tube portion. The hinge cap according to any one of claims 1 to 3, wherein the lateral rib is formed in an intermediate portion between the mounting tubular portion and the outer peripheral tubular portion. The hinge cap according to any one of claims 1 to 4, wherein the weakened piece is formed at the lower end portion between the mounting tube portion and the outer peripheral tube portion.

Images