JP7414376B2 - Uncork cap - Google Patents

Description

TECHNICAL FIELD The present invention relates to a plug cap that is used by pulling out the plug portion.

In this type of cap, a cylindrical cap body that is sealed to the mouth and neck of the container body and an upper lid that opens and closes the top surface of the cap body are connected by a hinge, and a break line is formed on the partition wall of the cap body. It is known that a plugging part surrounded by a plug is integrally formed, a pull ring is made to stand up from the plugging part, and the plugging part can be broken from the surroundings by pulling up the pull ring. (Patent Document 1).

JP2018-90258

The cap of Patent Document 1 requires a large pulling force to pull up the pull ring and break the break line around the plug removal part, and is not easy to open.

An object of the present invention is to provide a plug cap that can be easily opened.

The first means includes a cap body 2 having a partition wall 6 for sealing the mouth and neck of the container body, and a cap body 2 in which a stopper part 12 surrounded by a line of weakness 13 is formed in a part of the partition wall 6;
An outer circumferential wall 22 hanging down from a peripheral end of a top wall 26 disposed above the partition wall 6 is connected to the cap body 2 so as to be detachable from the partition wall 6, and has an opening in the top wall 26 . an upper lid 20 having an inner circumferential wall 30 hanging from the periphery of the insertion hole 28 ;
A removal member 40 for removing the plug removal part 12 from the cap body 2 is slidably assembled on the inner surface of the inner circumferential wall 30 with respect to the upper lid 20.
Equipped with
When the upper lid 20 is detached from the partition wall 6 , the plug removal part 12 is pulled out from the partition wall 6 via the removal member 40 and moved to the upper lid 20 side,
The removal member 40 can be pushed down with respect to the upper lid 20, and by the pushing down operation, the removal member 40 has a linking means C that penetrates and anchors the central part of the cap removal part 12, and an outer peripheral part of the cap removal part 12. It has a pressing means D for pressing .

In this means, as shown in FIG. 1 or FIG. 5, a plug removal part 12 surrounded by a line of weakness 13 is formed in a part of the partition wall 6 of the cap body 2 that fits into the outer surface of the mouth and neck part of the container body. There is.
Further, the upper lid 20 connected to the cap body 2 is assembled with a removal member 40 that can be pressed down from the outside. This removal member 40 is provided so as to slide on the inner surface of an inner circumferential wall 30 that extends vertically from the periphery of the insertion hole 28 opened in the top wall 26 of the upper lid 20 .
The removing member 40 has a pressing means D that presses the plug removal part 12 as shown in FIG. 3(A) when the removing member 40 is pressed down. By this pressing, it is possible to weaken the weakening line 13 in advance before the plug removal operation (including both further weakening the weakening line within a range that does not lead to breakage and at least partially breaking the weakening line). It is said that
Furthermore, the removal member 40 has a linking means C that is moored to the cap removal part 12 by pressing down, and when the top lid 20 is opened, the cap removal part 12 is pulled out from the partition wall 6 via the removal member 40 and moved toward the top lid side. It is formed to move (see Fig. 4).
According to this configuration, the weakening line 13 is weakened by the pressing means D prior to the opening operation of the top lid 20, so that the force required to remove the cap is reduced, and the cap can be opened easily.

The second means has the first means, and the removal member 40 has a top plate 42 that is slidably inserted into the inner circumferential wall 30 and cannot be pulled out downwardly, and As a linking means C, a linking rod 44 is hung from the center of the top plate 42,
The connecting rod 44 is formed so as to be able to pass through an easily breakable portion 15 formed in the center of the plug removal portion 12, and in this penetrating state, the connection rod 44 can be engaged with the lower surface side of the plug removal portion 12. It has a stop means S.

In this means, as shown in FIG. 1 or 5, the removal member 40 has a top plate 42 that is slidably inserted into the inner circumferential wall 30. This top plate 42 cannot be pulled out downward from inside the inner circumferential wall 30.
A linking rod 44 serving as linking means is vertically provided from the top plate.
This linking rod 44 is formed so as to be able to pass through the easily broken part 15 formed in a part of the plug removal part 12, and is a pull-out stop that can be engaged with the lower surface side of the plug removal part 12 in this penetrating state. It has means S.
According to this structure, the removal force for the cap removal part 12 is improved, and the cap removal part 12 can be reliably removed by opening the upper lid 20.

The third means has a second means, and the plug removal part 12 has a pressed part 14 disposed close to the weakened line 13,
When the removing member 40 is pressed down, the pressing means D formed on the lower surface of the top plate 42 comes into contact with and presses the pressed part 14,
The linking rod 44 has a hanging length that allows the lower end of the linking rod 44 to abut against the easily breakable portion 15 before the pressing means D contacts the pressed portion 14 due to the pressing operation. .

In this means, as shown in FIG. 1, the cork removal part 12 has a pressed part 14 located close to the weakened line 13, and is formed to be pressed by the pressing means D through this pressed part. ing.
The pressing means D is formed on the lower surface of the top plate 42 of the removal member 40.
Further, the length (hanging length) of the linking rod 44 is designed such that the lower end of the linking rod 44 abuts on the easily breakable portion 15 before the pressing means D contacts the pressed portion 14 due to the pressing operation. .
According to this configuration, the weakened line 13 is not yet broken when the linking rod 44 abuts against the breakable portion 15, so that the linking rod 44 can appropriately break the breakable portion 15.

The fourth means has a second means or a third means, and the linking rod 44 has a piercing protrusion 46 projecting downward from a vertical rod main body 45 when the lid is closed. ,
The stabbing protrusion 46 is formed in a tapered shape with a sharp lower end side when viewed from the horizontal direction, and has an overhanging stepped portion 48 that is connected to the lower end of the rod body 45 as the retaining means S. .

In this means, as shown in FIG. 1(A), the connecting rod 44 has a piercing protrusion 46 projecting downward from a vertical rod main body 45 when the lid is closed.
As shown in FIG. 2, the piercing protrusion 46 has a tapered shape with a pointed lower end when viewed from the horizontal direction. As a retaining means S, an overhanging stepped portion 48 is provided which is connected to the lower end of the rod body 45. This projecting stepped portion functions as a means S for preventing the plug from being pulled out.
According to this structure, even if the weakened line 13 around the plug removal part 12 is broken, the protruding step part 48 of the piercing protrusion 46 prevents the plug removal part 12 from falling off. The locking force of 44 can be increased.

The fifth means has a second means or a third means, and the connecting rod 44 is a piercing protrusion having a sharp end 47 on the lower end side from the vertical rod body 45 in the closed state. 46 is provided to protrude downward, and a folded piece 49 serving as the retaining means S is provided to protrude upwardly and outwardly from the stabbing protrusion 46,
This folded-back piece 49 has a protruding length that allows the tip of the folded-back piece 49 to lock onto the lower surface of the plug removal part 12 when the upper lid 20 is opened.

In this means, as shown in FIG. 5(A), a folded piece 49 that projects upwardly and outwardly from the piercing protrusion 46 is provided as the retaining means S. The tip of this folded piece 49 can be locked to the lower surface of the plug removal part 12.
According to this structure, the locking force of the linking rod 44 can be further increased.

According to the invention according to the first means, the plug removal part 12 surrounded by the line of weakness 13 is formed in a part of the partition wall 6 of the cap body 2, and the removal member 40 for removing the plug removal part from the partition wall is attached to the upper lid. 20, and the removal member presses the cap removal part by pressing down, so that the weakening line of the cap removal part is weakened prior to the cap removal operation, so that the force required for the cap removal is reduced, and the seal can be opened easily.
According to the invention according to the second means, the connecting rod 44 is provided vertically from the top plate 42 that is slidably inserted into the inner circumferential wall 30 of the upper lid 20, and this connecting rod passes through the plug removal part and faces the lower surface. Since the plugging part is prevented from coming off by engaging with the plug, the plugging part can be reliably removed.
According to the invention according to the third means, the lower end of the connecting rod 44 abuts against the easily breakable portion 15 before the pressing means D comes into contact with the pressed portion 14 due to the pressing operation. 15 can be appropriately broken.
According to the invention according to the fourth means, a piercing protrusion 46 is provided to protrude downward from the rod main body 45 of the linking rod 44, and this piercing protrusion serves as a retaining means S of the rod main body. Since the overhanging stepped portion 48 is provided which is connected to the lower end, the locking force of the connecting rod 44 to the plug removal portion 12 can be increased.
According to the invention according to the fifth means, the folded piece 49 is provided to protrude upwardly and outwardly from the stabbing protrusion 46 of the linking rod 44, and when the top cover is opened, the tip of the folded piece 49 Since the part locks onto the lower surface of the plug removal part 12, the locking force of the connecting rod 44 with respect to the plug removal part 12 can be increased.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram showing the overall structure of a plug removal cap according to a first embodiment of the present invention, in which (A) is a cross-sectional view of the cap when viewed from the side, and (B) is a bottom view. FIG. 2 is a side view of the removal member of the plug removal cap shown in FIG. 1; FIG. 2 is an explanatory view of the operation of pushing down the removal member of the cap removal cap in FIG. The state in which the cap is in contact with the pressed portion is shown, and FIG. 2C shows the state in which the weakened line of the plug removal portion is broken. FIG. 2 is an explanatory diagram of the opening operation of the cap removal cap in FIG. 1, in which (A) shows a state in which the cap removal part has been removed from the partition wall, and (B) shows a state in which the top cover is inverted together with the cap removal part. . It is a figure which shows the whole structure of the plug removal cap based on 2nd Embodiment of this invention, the same figure (A) is sectional drawing when the said cap was seen from the side, and the same figure (B) is a bottom view. 6A and 6B are diagrams showing the structure of the removal member of the plug cap shown in FIG. 5, in which FIG. 5A is a side view, FIG. 5B is a front view, and FIG. 5C is a perspective view. FIG. 6 is an explanatory diagram of the action of the cap removal cap in FIG. 5, in which (A) shows the state in which the piercing protrusion breaks through the easily broken part by pressing down the removal member, and (B) shows the state in which the top lid is removed. Each figure shows a state in which the folded piece of the removal member abuts against the back surface of the cap removal part due to the lid opening operation.

1 to 4 show a plug cap according to a first embodiment of the present invention.
As shown in FIG. 1(A), this plug removal cap includes a cap body 2, an upper lid 20, and a removal member 40.
Each of these members can be made of, for example, a synthetic resin material.

The cap body 2 has a cylinder peripheral wall 4 that can be attached to the outer surface of the mouth and neck part 102 of the container body 100, and a partition wall 6 that is attached to the upper end of this cylinder peripheral wall 4 so as to be able to seal the upper surface of the mouth and neck part. .
In the illustrated example, a fitting cylinder 7 for fitting into the mouth and neck part 102 is provided vertically from the outer periphery of the lower surface of the partition wall 6 . That is, the mouth and neck part 102 is fitted into a space (groove) surrounded by the fitting cylinder 7, the partition wall 6, and the cylinder peripheral wall 4.
Further, from the upper surface of the partition wall 6, an upright cylinder 8 having a larger diameter than the fitting cylinder 7 and a spouting cylinder 10 surrounded by the upright cylinder are respectively erected.
However, these structures can be modified as appropriate.
In the illustrated example, a hinge cap is disclosed in which an outer peripheral wall 22 of an upper lid 20 is rotatably connected to the upper part of the rear wall of the cylinder peripheral wall 4 via a hinge 18. However, instead of the hinge cap, a screw cap may be used in which the cylindrical peripheral wall 4 and the outer peripheral wall 22 are connected with screws.
In this specification, for convenience of explanation, the left side of FIG. 1A will be referred to as "front", the right side of FIG.

A plug removal part 12 surrounded by a loop-shaped weakened line 13 is formed in a part of the partition wall 6 (in the illustrated example, the center part of the partition wall).
In this embodiment, a plug removal part 12 is formed in the inner partition wall of the spouting cylinder 10.
In the illustrated example, the weakened line 13 is formed as a thin broken line.
Specifically, in the entire region of the partition wall 6 where the plug removal part 12 is formed, a depression 6a that is shallowly recessed upward is formed on the lower surface of the partition wall 6, and the upper surface of the partition wall 6 is raised by a certain width. There is. By doing so, the weakened line 13 is provided along the circumferential edge of the recess 6a.
The plug removal part 12 in the illustrated example is formed to be long in the front-rear direction, as shown in FIG. 1(B). With this shape, the liquid can be smoothly poured out from the opening after the plug removal part is removed. However, the shape of the plug removal part 12 can be changed as appropriate.

In the present invention, a pressed portion 14 is erected on the outer peripheral portion of the plug removal portion 12 so as to be close to the weakened line 13 . Further, an easily breakable part 15 is formed in the center of the plug removal part 12.
Except for the portion where the pressed portion 14 and the easily broken portion 15 are formed, the plug removal portion 12 in the illustrated example is formed as a horizontal flat plate.

The pressed portion 14 is a receiving portion for the pressing force exerted by the removal member 40, and is arranged near the weakened line 13 so that this pressing force is reliably transmitted to the weakened line 13.
The pressed portion 14 in the illustrated example is formed in the shape of a peripheral wall over the entire circumference of the weakened line 13 . However, this shape can be changed as appropriate.
For example, a plurality of pressed parts 14 may be arranged intermittently along the weakened line 13.
In addition, the height of the pressed portion 14 in the illustrated example is such that the height on the rear end side (h2) is the minimum, the height on the front end side (h1) is the maximum, and the height gradually increases from the rear side to the front side. is formed.

The easy-to-break portion 15 is formed by recessing the central portion of the plug removal portion 12 to make it thinner.
As shown in FIG. 1(B), the easy-to-break part 15 in the illustrated example is formed by two grooves 15b crossed in a cross shape and a round hole 15a overlapped at the intersection of these grooves. There is.
In the preferred illustrated example, the extending direction K of the groove 15b is designed to be offset in the circumferential direction from the imaginary line L extending forward from the center of the circular hole portion 15a.
Further, in the illustrated example, the edge surface of the round hole portion 15a is formed into a tapered edge p that narrows at the lower end side, as shown in FIG. 1(A). Further, the groove 15b has a pair of side groove surfaces q inclined in an inverted V shape (see FIG. 1(B)).
The tapered edge part p is connected to the removal member 40 by pressing a linking rod 44 of the removal member 40, which will be described later, from both sides in the front and rear directions, as shown in FIG. 4(A), when the removal member 12 is removed. It has a function of increasing cooperation with the section 12.
The shape of the easily breakable portion 15 can be changed as appropriate. However, in order to sufficiently secure the linking force, the direction K in which the groove 15b extends and the virtual line L are shifted in the circumferential direction as described above, so that at least the region in front of the round hole portion 15a is It is desirable not to provide the groove 15b in the region opposite to the hinge 18.

The upper lid 20 has an outer circumferential wall 22 extending vertically from the circumferential end of the top wall 26, and the outer circumferential wall 22 is connected to the cylindrical circumferential wall 4 by a hinge. In addition, the outer peripheral wall 22 may be vertically provided from the peripheral end of the top wall 26 via a stepped portion or a curved portion (R shape, etc.).
A fitting recess 23 is provided around the lower end of the inner surface of the outer peripheral wall 22 . An engaging portion formed at the upper end of the upright tube 8 is fitted into the fitting recess 23 .
A finger rest 24 projects forward from the front wall of the outer peripheral wall 22.

In the present invention, the top wall 26 is a ring-shaped top wall with a large-diameter insertion hole 28 in the center, and an inner peripheral wall 30 is suspended from the periphery of the insertion hole 28 (in the illustrated example, from the edge of the insertion hole). It is set up.
The inner peripheral wall 30 is a part for slidably housing the removal member 40.
In the illustrated example, the inner circumferential surface of the inner circumferential wall 30 includes a boundary portion between the upper cylindrical wall portion and the lower portion of the cylindrical wall (reduced diameter portion 34), which has a slightly smaller inner diameter than this cylindrical wall portion. A step 32 is formed at the position.
According to this configuration, the sliding contact portion (top plate 42 to be described later) of the removal member 40 slides relatively smoothly on the upper cylindrical wall portion, and is tightly fitted when pushed into the reduced diameter portion 34. .
The reason for providing the step 32 is to avoid the inconvenience that when the cap removal cap is accidentally dropped on the floor or the like, the removal member 40 may pierce the partition wall of the cap body due to the impact of the collision with the floor or the like, causing it to break. It's for a reason.
Further, an inner rib 38 is formed at the lower end of the inner peripheral wall 30. This inner rib 38 prevents the removal member 40 from slipping out downward.
In the illustrated example, a convex upper main fitting strip 31 is provided on the inner surface of the upper end of the inner circumferential wall 30, and a convex lower main fitting strip 36 is provided on the inner surface of the reduced diameter portion 34, respectively. It is surrounded.
The upper main fitting strip 31 and the lower main fitting strip 36 fit with the sliding portion of the removal member 40, but the upper main fitting strip 31 is designed to prevent downward movement due to drop impact, etc. The main fitting strip 36 has the function of preventing the removal member 40 from slipping out downward, similar to the inner rib 38 described above.

The removing member 40 weakens the weakening line 13 and ruptures the easily breakable portion 15 when pressed down from the outside, and removes the plug removal portion 12 from the cap body 2 when the upper lid 20 is opened. It is a member for
"Weakening the weakening line 13" refers to either a mode in which the weakening line 13 is further weakened by stretching by pressing down but does not break, or a mode in which at least a part of the weakening line 13 is broken. You can.
In order to realize these functions, the removal member 40 is assembled to the upper lid 20 so that it can be pushed down from the outside and does not fall off from the upper lid 20 when the lid is opened.
The removal member 40 is inserted into the inner circumferential wall 30 through the insertion hole 28 and set at the position shown in FIG. 1(A).
As shown in FIG. 1(A), the removal member 40 of this embodiment includes a top plate 42 that is slidably fitted into the inner peripheral wall 30, and a linking rod 44 that hangs down from the center of the top plate 42. has.
Note that the removal member 40 is desirably made of a harder material than the cap body 2 and the upper lid 20.

The top plate 42 is located within the upper end of the inner peripheral wall 30 in the unopened state shown in FIG. 1(A).
The top plate 42 is a horizontal plate having an outer circumferential surface that is in slidable surface contact with the inner circumferential wall 30, and has a thickness that allows it to slide downward while maintaining its horizontal state.
In this embodiment, a pressing means D is formed on the lower surface of the outer periphery of the top plate 42, and when the removal member 40 is pushed down, the lower surface of the outer periphery is pressed against the pressed portion 14 as shown in FIG. 3(B). It is formed so as to come into contact with the front part of the pressed part 14, and then with the rear part of the pressed part 14, as shown in FIG. 3(C).
Note that the lower surface of the top plate 42 does not need to be a flat horizontal surface. For example, a structure in which the top plate has a push-down piece that projects downward is also included in the "pressing means formed on the lower surface of the top plate."
In the illustrated example, a concave sub-fitting strip 43 is provided around the outer peripheral surface of the top plate 42, as shown in FIG. When the removal member 40 is at the upper limit position as shown in FIG. 1(A), this sub-fitting strip 43 fits into the convex upper main fitting strip 31, and also as shown in FIG. 3(C). As shown, when the removal member 40 is at the lower limit position, it is formed so that it can fit into the convex lower main fitting strip 36.
Note that, unlike the illustrated example, the upper main fitting strip 31 and the lower main fitting strip 36 may be formed in a concave shape, and the sub fitting strip 43 may be formed in a convex shape.
Further, the top plate 42 is not provided with the sub-fitting strip 43, but the convex upper main fitting strip 31 and the lower main fitting strip 36 are formed so as to be pressed against (or bite into) the outer circumferential surface of the top plate 42. Good too.
Furthermore, since the top plate 42 is exposed as part of the external appearance of the cap removal cap, depending on the degree of recess of the top plate 42 with respect to the top wall 26 of the upper lid 20, the removal cap may be in a state before opening or a state after opening. It is possible to determine whether
In the state shown in FIG. 1A, the top surface of the illustrated top plate 42 is lower than the top surface of the top wall 26 of the upper lid 20 with a slight gap a, but the top plate 42 and the top wall The upper surface of 26 may be made flush.
The reason for providing the gap a is almost the same as the above-mentioned step 32. When the cap is accidentally dropped and turned upside down, the top plate 42 collides with the floor, etc., and the impact causes the removal member 40 to break the cap. This is to avoid the inconvenience of sticking into the partition wall of the main body.

The linking rod 44 has the role of a push-down bar that breaks the breakable portion of the cork removal part, and the role of a linking means C that links the cap removal part to the top lid after breaking the weakened line.
As shown in FIG. 1A, the connecting rod 44 has a rod main body 45 that extends perpendicularly from the lower surface of the top plate 42 when the upper lid 20 is in a closed state. It protrudes into the
The piercing protrusion 46 has a sharp end 47 on the lower end side, and when the removal member 40 is pushed in, the sharp end 47 can pierce the easily breakable portion 15 as shown in FIG. 3(A). It is designed so that it can be done.
It is preferable that the piercing protrusion 46 has a tapered cross-sectional shape narrowing from the upper side to the lower side so that the easily breakable portion 15 can be broken.
In the illustrated example, the cross-sectional shape is an inverted chevron shape (inverted triangular shape).
The corners of the inverted triangle are preferably acute angles (for example, 70° corners). However, it is sufficient if the shape is sharp enough to penetrate the easily broken part.
In this embodiment, the piercing protrusion 46 is formed into a conical shape. By doing so, the breakable portion 15 having the shape shown in FIG. 1(B) can be reliably broken.
However, the structure of the piercing protrusion 46 can be changed as appropriate depending on the shape of the easily broken portion 15.
Between the lower end of the rod body 45 and the upper end of the piercing protrusion 46, an annular projecting step portion 48 is formed which widens in the radial direction of the rod body 45.
In this embodiment, as shown in FIG. 4(A), the projecting step portion 48 serves as a retaining means S for preventing the piercing protrusion 46 that has passed through the easily breakable portion 15 from coming off.
That is, even if the cork removal part 12 tries to fall off from the linking rod 44 in the state shown in FIG. 4(A), the overhanging step part 48 catches the breakage point of the easily breakable part 15, thereby preventing it from falling off.
Further, the hanging length of the linking rod 44 is set so as to allow the lower end of the linking rod 44 to abut against the breakable portion 15 before the pressing means D contacts the pressed portion 14 due to the pressing operation.
If the weakened wire 13 breaks before the abutment, even if the connecting rod 44 abuts against the cork removal part 12, the cork removal part 12 will bend to escape downward, and there is a risk that the easily breakable part 15 may not be ruptured. This is because there is.

In the above configuration, when using the stopper cap, the cylindrical peripheral wall 4 is fitted into the mouth and neck portion 102 of the container body, as shown in FIG. 1(A).
At this time, the sub-fitting strip 43 of the top plate 42 is fitted into the upper main fitting strip 31 of the inner peripheral wall 30. This prevents the removal member 40 from descending from the upper limit position due to, for example, the user's finger accidentally touching the top plate 42.
From this state, the top plate 42 of the removal member 40 is pushed down.
Then, the piercing protrusion 46 of the connecting rod 44 abuts against the easily breakable portion 15 of the plug removal portion 12, causing the easily breakable portion 15 to break as shown in FIG. 3(A).
In the state after the piercing protrusion 46 has penetrated the plug removal part 12, the tapered edge p of the round hole part 15a is pressed against both the front and rear surfaces of the rod main body 45. By doing so, the plug removal part 12 is linked (locked) to the linking rod 44.
When the top plate 42 is further pushed down, the pressing means D formed on the lower surface of the outer periphery of the top plate 42 presses the pressed part 14, forcing the weakened line 13 located directly below it. elongate and weaken. In the case of this embodiment, the weakened line 13 is broken.
As shown in the illustrated example, when the elevation height (h2) of the pressed portion 14 on the side opposite to the hinge 18 is larger (h1), the breakage of the line of weakness 13 is as follows. The breakage first occurs on the side opposite to the hinge 18, and the range of the breakage gradually expands toward the hinge 18 side.
When the top plate 42 is pushed to the position (lower limit position) shown in FIG. It is fitted into the lower main fitting strip 36.
At this time, the lower circumferential edge of the top plate 42 is engaged with the inner rib 38 to prevent the top plate 42 from falling off from the inner circumferential wall 30.
In addition, at the stage of FIG. 3(C), the weakening line 13 may be broken all around the cork removal part 12, or the weakening line 13 may be broken only on the side opposite to the hinge 18. On the hinge 18 side, the line of weakness 13 may simply be extended.
This is because by extending the weakening line 13 from the state at the time of molding, the strength of the weakening line is weakened, and it becomes easy to tear it off from this state.
Further, at the stage shown in FIG. 3C, no part of the weakened line 13 may be broken, and it may simply remain in a state where it is more likely to break.
Next, grip the finger hook 24 and rotate the top lid 20 in the opening direction. Then, as described above, since the top plate 42 of the removal member 40 is fitted to the inner circumferential wall 30 of the upper lid 20 and the plug removal part 12 is linked to the linking rod 44, as shown in FIG. 4(A). Then, the plug removal part 12 is pulled out from the partition wall 6 of the cap body 2 and moved to the upper lid 20 side.
At this time, even if the plug removal part 12 tries to fall off from the linking rod 44, the protruding step part 48 of the piercing protrusion 46 prevents the plug removal part 12 from coming off downward, so that it will not fall off.
In addition, when the portion of the weakened line 13 on the hinge 18 side is in the extended state as described above, the stretched portion of the weakened line 13 is cut by the pulling operation.
Compared to the conventional technique in which the entire weakened wire 13 is broken when the plug is pulled out, in the present invention, at least a part of the weakened wire 13 is broken prior to the pulling operation, and the weakened wire is Since the remaining portion is also extended, the pulling operation can be performed with relatively little force.
When the upper lid 20 is further rotated, the cap removal part 12 moves toward the upper lid side and moves in the opening direction together with the removal member 40 and the upper lid 20, as shown in FIG. 4(B).
Next, by removing the stopper part 12, the contents can be poured out from the opening formed in the cap body 2.

Hereinafter, a plug removal cap according to another embodiment of the present invention will be described. In these descriptions, explanations regarding the same configurations as in the first embodiment will be omitted.

5 to 7 show a plug cap according to a second embodiment of the present invention.
In this embodiment, first, the structures of the easily breakable portion 15 and the piercing protrusion 46 are changed.
That is, as shown in FIG. 5(B), the easily breakable part 15 of this embodiment has one round hole part 15a and one part that crosses this round hole part in the left-right direction (direction of the rotation axis A of the upper lid). It is formed by the concave groove 15b of the book.
Further, the stabbing protrusion 46 is formed in the shape of a triangular prism that is tilted sideways in the left-right direction, as shown in FIG. 6(C).
In the illustrated example, the shape of the triangular prism when viewed from the left and right directions is approximately an inverted triangle, as shown in FIG. 6(A), and the shape when viewed from the front and rear directions is horizontally elongated as shown in FIG. It is a rectangle.
The stabbing protrusion 46 has an overhanging stepped portion 48 that widens in the front-rear direction and left-right direction from the lower end of the rod main body 45 (see FIGS. 6(A) and (B)).
Further, in this embodiment, a pair of folded pieces 49 are provided to protrude upwardly and outwardly from the projecting step portion 48, and a pair of engagement grooves 16 that can be engaged with the tips of these folded pieces 49 are provided at the plug removal portion. It is formed on the back side of 12. These engagement grooves 16 are located on both the front and rear sides of the round hole portion 15a shown by dotted lines in FIG. 5(B) when viewed from below.
In the first embodiment, the folded piece 49 serves as the retaining means S instead of the projecting step.
According to this structure, as shown in FIG. 7(B), when the top cover 20 is rotated in the opening direction and the plug removal part 12 is pulled out via the linking rod 44, the tip of the folded piece 49 is engaged. It is locked within the groove 16.
This is to make it difficult for the piercing protrusion 46 to come out after penetrating the partition wall.
Therefore, the function of preventing the plug removal part 12 from being pulled out from the linking rod 44 is strengthened, and the locking force of the linking rod 44 with respect to the plug removal part 12 is improved.
In this embodiment, the combination of the folded piece 49 and the engagement groove 16 realizes the slip-out prevention function. It doesn't matter if it's locked.
Further, in the illustrated example, the pair of folded pieces 49 are provided so as to protrude from the stabbing protrusion 46 in the front-rear direction, but they may be provided in other directions (for example, the left-right direction).
Furthermore, the number of folded pieces 49 can be changed as appropriate; for example, three or more folded pieces 49 may be made to protrude equiangularly when viewed from below.

2... Cap body 4... Cylinder circumferential wall 6... Partition wall 6a... Hollow 7... Fitting tube 8... Standing tube 10... Spouting tube 12... Cap removal part 13... Weakening line 14... Pressed part 15... Easily broken part 15a... Round hole Part 15b...Concave groove 16...Engaging groove 18...Hinge 20...Top lid 22...Outer peripheral wall 23...Fitting recess 24...Finger hook 26...Top wall 28...Insertion hole 30...Inner circumferential wall 31...Upper main fitting strip 32... Step 34... Reduced diameter part 36... Lower main fitting strip 38... Inner rib 40... Removal member 42... Top plate 43... Sub-fitting strip 44... Linking rod 45... Rod main body 46... Piercing protrusion 47... Sharp end 48... Overhanging stepped portion 49... Folded piece 100... Container body 102... Mouth and neck A... Rotating shaft a... Gap C... Linking means D... Pressing means K... Extending direction of groove L... Virtual line p... Tapered edge q... Side gutter surface S... Retaining means

Claims (5)

A cap body (2) has a partition wall (6) that seals the mouth and neck of the container body, and a cap body (2) in which a stopper part (12) surrounded by a line of weakness (13) is formed in a part of the partition wall (6). )and,
An outer peripheral wall (22) hanging down from a peripheral end of a top wall (26) disposed above the partition wall (6) is connected to the cap body (2) so as to be detachable from the partition wall (6). and an upper lid (20) having an inner circumferential wall (30) hanging from the periphery of the insertion hole (28) opened in the top wall (26) ;
a removal member (40) for removing the plug removal part (12) from the cap body (2), which is slidably assembled on the inner surface of the inner peripheral wall (30) with respect to the upper lid (20);
Equipped with
When the upper lid (20) is detached from the partition wall (6) , the plug removal part (12) is pulled out from the partition wall (6) via the removal member (40) and moves to the upper lid (20) side. It is set up so that
The removal member (40) is capable of being pushed down with respect to the top lid (20), and is coupled to a linking means (C) that penetrates and is moored through the central part of the plug removal part (12) by the pushing down operation. , a plug removal cap characterized in that it has a pressing means (D) for pressing an outer peripheral portion of the plug removal portion (12) . The removal member (40) has a top plate (42) that is slidably inserted into the inner circumferential wall (30) but cannot be pulled out downwardly, and the top plate (42) serves as the linking means (C). A connecting rod (44) is suspended from the center of (42),
The linking rod (44) is formed to be able to pass through an easily breakable part (15) formed in the center of the plug removal part (12), and in this penetrating state, the plug removal part (12) can be opened. The plug removal cap according to claim 1, characterized in that it has a removal preventing means (S) that can be engaged with the lower surface side. The plug removal part (12) has a pressed part (14) arranged close to the weakened line (13),
When the removing member (40) is pressed down, the pressing means (D) formed on the lower surface of the top plate (42) comes into contact with and presses the pressed part (14),
The linking rod (44) is configured such that the lower end of the linking rod (44) touches the easily breakable part (15) before the pressing means (D) comes into contact with the pressed part (14) by the pressing operation. The plug cap according to claim 2, characterized in that it has a drooping length that allows the plug to abut against each other. The linking rod (44) has a piercing protrusion (46) projecting downward from a vertical rod body (45) when the lid is closed;
The stabbing protrusion (46) is formed in a tapered shape with a sharp lower end when viewed from the horizontal direction, and is connected to the lower end of the rod body (45) as the retaining means (S). The plug removal cap according to claim 2 or 3, characterized in that it has an overhanging step (48). The connecting rod (44) has a piercing protrusion (46) having a sharp end (47) on the lower end side projecting downward from the vertical rod body (45) when the lid is closed. A folded piece (49) serving as the retaining means (S) is provided to protrude upwardly and outwardly from the projection (46),
This folded piece (49) has a protruding length that allows the tip of the folded piece (49) to lock onto the lower surface of the plug removal part (12) when the upper lid (20) is opened. The plug removal cap according to claim 2 or 3, characterized in that it has.