JP2014213936A - Hinge cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hinge cap capable of preventing an upper lid from being crushed to widen a side peripheral wall when a container is inverted and dropped, even though the upper lid of the hinge cap is thin.SOLUTION: A hinge cap includes a cap body mounted on the mouth part of a container, and a thin upper lid connected through a hinge. The cap body includes a mounting part mounted on the mouth part of the container, an upper wall for blocking mouth part opening, an annular lid engaging part provided on the upper end outer peripheral surface of the upper wall and engaged with the upper lid to keep a lid closed state, and an extraction cylinder erected around an extraction hole piercing the upper wall. The upper lid includes a top wall, and a side peripheral wall vertically disposed on the circumference of the top wall. A cylindrical inner seal ring for sealing the inner peripheral surface of the extraction cylinder of the cap body is vertically disposed on the reverse face of the top wall. An engaging recess provided with an engaging protrusion on the lower side, and engaged with a lid engaging part outer periphery of the cap body, and a projection part engaged with a lid engaging part inner periphery are formed on the lower end inner periphery of the side peripheral wall.

Description

  The present invention relates to a hinge cap in which an upper lid is connected to a cap body attached to a mouth portion of a container via a hinge. More specifically, the present invention relates to a hinge cap that is difficult to deform even if the upper lid collides with the cap when dropped. is there.

Conventionally, a hinge cap having a dispensing cylinder for dispensing liquid is attached to the mouth of a container filled with liquid. As this type of hinge cap, a cap body having a pouring cylinder and an upper lid having an inner seal ring for sealing the pouring cylinder are connected via a hinge.
In particular, recently, there has been known a technique in which the thickness of the upper lid is reduced (hereinafter referred to as “thin wall”) for the purpose of reducing the weight of the hinge cap, adjusting the internal pressure, and the like (see, for example, Patent Document 1).

No. 8-2124

  However, in the hinge cap of Patent Document 1, when the top of the upper lid is thin, it becomes easier to deform than a thick one, and when the container falls in an inverted state (hereinafter referred to as “inverted fall”), the hinge cap There is a problem that the upper lid is crushed, the lower end portion of the side peripheral wall is expanded, (1) the pouring cylinder is crushed, and (2) the upper lid is deformed by the deformation of the upper lid.

  An object of the present invention is to provide a hinge cap that can prevent the upper cover from being crushed and the side peripheral wall from spreading when the container falls in an inverted manner even when the upper cover of the hinge cap is thin, in order to solve the above problems. For the purpose.

  In order to solve the above-mentioned problem, the present invention provides a hinge cap comprising a cap body attached to the mouth of a container as a hinge cap, and a thin upper lid connected to the cap body via the hinge, The cap body includes a mounting portion that is attached to the mouth portion of the container, an upper wall that extends inward from the upper end of the mounting portion and seals the opening of the mouth portion, and is provided on the outer peripheral surface of the upper end of the upper wall and is locked to the upper lid. It consists of an annular lid locking part that keeps the closed lid state, and a pouring cylinder that stands up around the pouring hole that penetrates the upper wall. The upper lid is suspended from the top wall and the periphery of the top wall. A cylindrical inner seal ring that seals the inner peripheral surface of the extraction pipe of the cap body is provided vertically on the back surface of the top wall, and the cap main body is provided on the inner periphery of the lower end portion of the side peripheral wall. An engagement recess provided with an engaging protrusion on the lower side to engage with the outer periphery of the lid locking portion, and an inner periphery of the lid locking portion That a convex portion engagement is formed to employ a configuration characterized by.

  Another aspect of the present invention is a hinge cap comprising a cap body attached to a mouth portion of a container and a thin upper lid connected to the cap body via a hinge, wherein the cap body is a mouth portion of the container. An upper wall extending inwardly from the upper end of the mounting portion and sealing the mouth opening, and an annular shape that is provided on the outer peripheral surface of the upper wall and that is locked to the upper lid to maintain a closed state. It consists of a lid locking part and a pouring tube erected around the pouring hole that penetrates the upper wall, and the upper lid consists of a top wall and a side peripheral wall that is suspended from the periphery of the top wall, On the inner periphery of the lower end of the side peripheral wall, there is formed an engaging recess having an engaging protrusion on the lower side that engages with the outer periphery of the lid locking portion of the cap body. A cylindrical inner seal ring that seals the inner peripheral surface of the tube, and a support that contacts the upper end surface and outer peripheral surface of the dispensing cylinder DOO adopts a structure which is characterized in that it is vertically.

  Furthermore, as a hinge cap of another aspect, a hinge cap comprising a cap body attached to the mouth of the container, and a thin upper lid connected to the cap body via the hinge, the cap body is a container of the container. A mounting portion to be mounted on the mouth portion, an upper wall extending inward from the upper end of the mounting portion and sealing the opening of the mouth portion, and provided on the outer peripheral surface of the upper end of the upper wall to be locked to the upper lid to maintain a closed state. It consists of an annular lid locking part and a pouring tube standing around the pouring hole that penetrates the upper wall, and the upper lid is composed of a top wall and a side peripheral wall that is suspended from the periphery of the top wall. And, on the back surface of the top wall, a cylindrical inner seal ring that seals the inner peripheral surface of the dispensing cylinder of the cap body, and a support portion that abuts the upper end surface and the outer circumferential surface of the dispensing cylinder, On the inner periphery of the lower end of the side wall, there is an engaging ridge below the cap locking part outer periphery of the cap body. And the engaging recesses, to adopt a configuration, wherein a and the convex portion engaging the periphery and the cover engagement portion is formed.

As a specific embodiment of the upper lid, a configuration characterized in that the top wall of the upper wall is dome-shaped.
Moreover, the structure characterized by the top wall of an upper cover being flat is employ | adopted.

  The hinge cap according to the present invention includes an engagement recess provided with an engagement protrusion on the lower end inner periphery of the side peripheral wall of the thin upper cover and engaging with the outer periphery of the cap engagement portion of the cap body, and the inner periphery of the lid engagement portion. When the container falls upside down, the convex part formed on the inner periphery of the lower end of the side peripheral wall of the upper lid even if the upper cover is crushed and the side peripheral wall is about to expand It is possible to prevent the upper lid from being deformed by being restrained by the inner periphery of the lid engaging portion of the cap body.

  The hinge cap according to another aspect of the present invention includes a cylindrical inner seal ring that seals the inner peripheral surface of the dispensing cylinder of the cap body on the back surface of the top wall of the thin upper lid, and an upper end surface of the dispensing cylinder. And the support part that comes into contact with the outer peripheral surface are suspended from the back surface of the top wall of the upper lid even if the upper lid is crushed and the side circumferential wall is widened when the container is inverted. It is possible to prevent the upper lid from being deformed by the tip portion of the support portion coming into contact with the upper end surface of the extraction cylinder of the cap body.

Furthermore, the hinge cap of the present invention is not only a convex portion formed on the inner periphery of the lower end portion of the side wall of the thin upper lid, but also a support portion suspended from the back surface of the top wall of the upper lid. Furthermore, the deformation of the upper lid can be effectively prevented.
Furthermore, the hinge cap of the present invention may have a top wall of the upper lid that is dome-shaped or flat, but the dome-shaped case is more effective from the viewpoint of preventing deformation of the upper lid. .

It is a section side view showing the closed state of the hinge cap which is the 1st example of the present invention. It is a figure which shows the open state of the hinge cap which is 1st Example of this invention, (a) is a top view, (b) is a cross-sectional side view. (A) is a bottom view which shows the open state of the hinge cap which is 1st Example of this invention, (b) is a principal part enlarged view of Fig.2 (a). It is a principal part enlarged view of FIG. 1 which shows the positional relationship of the extraction pipe | tube at the time of lid closing of the hinge cap which is 1st Example of this invention, an inner seal ring, and a support part. It is a cross-sectional side view which shows the cover state of the hinge cap which is 2nd Example of this invention. It is a sectional side view showing the closed state of the hinge cap which is the 3rd example of the present invention. It is a figure which shows the open state of the hinge cap which is 3rd Example of this invention, (a) is a top view, (b) is a cross-sectional side view.

  Next, the hinge cap of the present invention will be described with reference to the drawings showing examples.

  1 and 2, A is a container, B is a cap body, C is a hinge, and D is an upper lid that is connected to the cap body B via the hinge C.

The container A is a squeeze-type container that has a mouth portion 1 and pushes out a liquid.
The cap body B includes a mounting portion 3, an upper wall 4, and a dispensing cylinder 5. The mounting portion 3 includes an annular base wall 7 provided with a lid locking portion 6 provided with locking protrusions on the periphery. The inner cylinder 8 is suspended from the inner periphery of the base wall 7 and the outer cylinder 9 is suspended from the outer periphery of the base wall 7.

An engaging ridge 10 that engages with the fitting ridge 2 of the mouth portion 1 of the container A is provided at the lower end portion of the inner peripheral surface of the outer cylinder 9.
A slit groove formed on the upper surface of the outer cylinder 9 extends from the vicinity of one side of the connecting portion of the hinge C toward the center of the hinge C, extends over an arc range of a predetermined circumferential angle, and is cut to a predetermined depth. 9a is recessed.
As shown in FIG. 3B, the inner peripheral side of the bottom of the slit groove 9 a of the outer cylinder 9 is thin between the inner periphery of the outer cylinder 9 and a thin peripheral part 9 b that can be broken is formed.
In addition, about the thin periphery part 9b, you may provide a cut | interruption in a fixed range from the fracture | rupture start point used as the starting point at the time of a separate disposal.
A thin connecting portion 9d serving as a breaking start point is formed between the end portion of the slit groove 9a of the outer cylinder 9 on the hinge C side and a substantially V-shaped outer peripheral recess 9c cut in the vertical direction from the outer periphery. A thin vertical portion 9e that can be broken is formed on the inner peripheral side of the outer peripheral recess 9c.
Further, the vicinity of the thin vertical portion 9e of the engaging protrusion 10 of the outer cylinder 9 is cut out from the inner periphery.

The upper end of the inner cylinder 8 is connected to the extraction cylinder 5 through the upper wall 4, and an extraction hole 11 is formed at the lower end of the extraction cylinder 5.
In order to guide the liquid to be dispensed, the dispensing cylinder 5 is formed in a nozzle shape in the present embodiment, and the tip portion 5a has a horizontal flat surface.
Further, a valve body E is provided at a predetermined position on the inner periphery 5 b of the dispensing cylinder 5.

The upper lid D is pivotally attached to the outer peripheral upper end of the outer cylinder 9 of the cap main body B via the hinge C, and is suspended from the top wall 12 formed in a thin dome shape and the periphery thereof. Side peripheral wall 13.
As shown in FIGS. 1 and 4, a cylindrical inner seal ring 14 that seals the upper portion of the inner periphery 5 b of the dispensing cylinder 5 is provided on the back surface of the top wall 12, and further, outside the inner seal ring 14. The outer support ring 15 which is a support part which contacts the upper end part 5a of the extraction | pouring cylinder 5 is hung coaxially. The outer support ring 15 as a support portion may be formed over the entire circumference or may be formed at intervals.

On the inner periphery of the lower end portion of the side peripheral wall 13, a convex portion 16 that engages with the inner peripheral side of the lid engaging portion 6 of the cap body B, and a downwardly engaging protrusion that engages with the outer peripheral side of the lid engaging portion 6. The protrusions 16 may be formed over the entire circumference or at intervals.
A knob 18 is formed in an arc shape on the outer periphery of the lower end of the side peripheral wall 13 opposite to the hinge C. In this embodiment, the side peripheral wall 13 has a thin-walled portion 13a in the vicinity of the knob 18 provided. The knob 18 has a recess 18a formed on the upper surface in the vicinity of the lower end of the side peripheral wall 13.

As shown in FIGS. 2 and 3, a tamper-opening prevention mechanism is provided on the side opposite to the hinge C of the outer cylinder 9, and a sealing plate having a sealing locking portion 19 a that engages with the knob portion 18 of the upper lid D. 19 is connected to the outer periphery of the upper end of the outer cylinder 9.
The sealing plate 19 has an outer peripheral portion 19 b formed along the outer peripheral edge of the knob portion 18, and a seal locking portion 19 a is provided at the upper center of the outer peripheral portion 19 b so as to cover the upper surface of the knob portion 18. It has become.
A bottom plate 19c is continuously provided from the lower end of the outer peripheral portion 19b of the sealing plate 19. The bottom plate 19c is disposed on both sides of the sealing locking portion 19b in a plan view so as to be positioned on the lower surface of the knob portion 18, and includes a plurality of bottom plates 19c. It is connected to the outer cylinder 9 by the weakening connecting piece 19d.

As shown in FIG. 4, the valve body E includes a disk-shaped shielding plate 21 having a gap 20 between the inner periphery 5 b of the dispensing cylinder 5, and the shielding plate 21 with the inner periphery 5 b of the dispensing cylinder 5. The connecting plate 22 is formed of a rectangular connecting piece 22 to be connected, and the shielding plate 21 is set to a thickness that does not deform, whereas the connecting piece 22 is formed thinner than the thickness of the shielding plate 21, Flexibility is imparted.
As shown in FIGS. 1 to 3, in the present embodiment, the connection between the shielding plate 21 and the inner periphery 5 b of the extraction cylinder 5 is provided on the hinge C side via the connection piece 22.

As shown in FIGS. 1 and 4, the inner seal ring 14 is positioned so that the front end portion 14 a comes into contact with or is close to the outer peripheral end 21 a of the shielding plate 21 of the valve body E when the lid is closed.
An annular tightening portion 5 c that contacts the outer periphery 14 b of the inner seal ring 14 is formed on the upper portion of the inner periphery 5 b of the dispensing cylinder 5.
Further, the outer support ring 15 that is coaxially suspended outside the inner seal ring 14 has a notch formed on the inner peripheral side of the tip 15a, and the flat surface 15b of the notch is poured out when the lid is closed. While being in contact with the outer peripheral side of the upper end portion 5 a of the cylinder 5, the vertical surface 15 c of the notch is in sliding contact with the outer peripheral surface 5 d of the extraction cylinder 5.

Next, usage modes and operational effects of this embodiment will be described.
As shown in FIG. 1, the hinge cap according to the present embodiment is applied to the mouth 1 of the container A filled with liquid in a state where the upper lid D is closed and the cap main body B and the upper lid D are sealed by the unauthorized opening prevention mechanism. Plugged and attached.
When closing the upper lid D, the seal locking portion 19a is moved outward by the knob 18 and the sealing plate 19 is rotated with the weakened connecting piece 19d bent.
When the upper lid D is further pressed, the seal locking portion 19a gets over and engages the tip of the knob portion 18, the sealing plate 19 is restored, and the upper lid D and the cap body B are sealed. The upper lid D is closed by fitting the portion 16 and the locking recess 17 so as to sandwich the lid locking portion 6 of the cap body B.
In the plugging step, the mouth portion 1 of the container A is applied to the annular groove formed between the inner cylinder 8 and the outer cylinder 9 of the mounting portion 3, and a pressing force is applied from above the upper lid D. The fitting protrusion 10 is fitted over the fitting protrusion 2 of the mouth portion 1, and the mouth portion 1 is sandwiched between the outer periphery of the inner tube 8, the inner periphery of the outer tube 9, and the base wall 7. It is installed by.
In the present embodiment, the mounting portion 3 holds the mouth portion 1 of the container A by the outer periphery of the inner tube 8, the inner periphery of the outer tube 9, and the base wall 7. While forming an external thread in the outer periphery of the part 1, you may screw by forming an internal thread in the inner periphery of the outer cylinder 9. FIG.

In order to open the hinge cap of the present embodiment, from the state shown in FIG. 1, the sealing plate 19 is rotated to release the engagement between the seal locking portion 19a and the knob portion 18, and the weakened connecting piece 19d is The sealing plate 19 is removed by cutting.
Next, the knob 18 of the upper lid D is pushed up, the engagement between the locking recess 17 of the upper lid D and the lid locking portion 6 of the cap body B is released, and the upper lid D is opened.

When the liquid is poured out from the container A, the liquid that flows out from the pouring hole 11 formed in the upper wall 4 is removed from the valve provided on the inner periphery 5b of the pouring cylinder 5 only by tilting the container A. By being obstructed by the shielding plate 21 of the body E, only a small amount is poured out from the nozzle-like tip portion 5a through the gap 20 formed between the inner periphery 5b of the dispensing cylinder 5 and the shielding plate 21.
At this time, if the container A is squeezed to extrude the liquid, the liquid that has flowed out of the extraction hole 11 into the extraction cylinder 5 presses the shielding plate 21 of the valve element E and bends the connecting piece 22. Then, while expanding the flow path in the extraction cylinder 5, an amount corresponding to the squeeze is discharged from the nozzle-shaped tip portion 5 a.
Thus, by providing the valve body E on the inner periphery 5b of the dispensing cylinder 5, it is possible to prevent the liquid from jumping out at a time when the container A falls down or tilts.

Next, after finishing the use of the container A, when the upper lid D is closed, the annular convex portion 16 and the locking concave portion 17 of the side peripheral wall 13 are fitted so as to sandwich the lid locking portion 6 of the cap body B, Return to the closed state.
At this time, the outer periphery 14b of the inner seal ring 14 is in contact with the annular fastening portion 5b formed on the inner periphery of the extraction cylinder 5 to form a seal portion that is continuous in the circumferential direction. The inside of the pour cylinder 5 that communicates with the outside of the inner seal ring 14 in the upper lid D is sealed.
At the same time, in the outer support ring 15, the flat surface 15 b of the notch formed in the tip portion 15 a abuts on the outer peripheral side of the upper end portion 5 a of the extraction tube 5, and the vertical surface 15 c of the notch portion is the extraction tube 5. The outer peripheral surface 5d is slidably contacted to hold the dispensing cylinder 5 from the upper outer periphery.

Further, the tip portion 14 a of the inner seal ring 14 is in contact with or close to the outer peripheral end 21 a of the shielding plate 21 of the valve body E, thereby preventing liquid from flowing into the inner seal ring 14 from the container A. be able to.
At this time, the distal end portion 14a of the inner seal ring 14 does not need to be in complete contact with the outer peripheral end 21a of the shielding plate 21, and if the two are in a close positional relationship, liquid is applied to the inner periphery 5b of the dispensing cylinder 5. This is because, when it flows in, the shielding plate 21 is pushed toward the distal end portion 14a of the inner seal ring 14 so that both come into contact with each other.

If the container A in the closed state is accidentally dropped and dropped, the top wall 12 of the upper lid D collides with the floor surface and is crushed and the side peripheral wall 13 expands. In the cap, the convex portion 16 formed on the inner periphery of the lower end portion of the side peripheral wall 13 of the upper lid D is constrained by the inner periphery of the lid locking portion 6 of the cap body B and cannot further spread, so that the upper lid D is deformed. Can be prevented from opening.
Furthermore, in the hinge cap of the present embodiment, even if the container A falls in an inverted manner, the distal end portion 15a of the outer support ring 15 that is a support portion that is suspended from the back surface of the top wall 12 of the upper lid D is attached to the cap body B. The outer support ring 15 supports the top wall 12 by coming into contact with the upper end portion 5a of the outlet cylinder 5 and can prevent the top wall 12 of the upper lid D from being crushed.
In addition, the outer support ring 15 has a flat surface 15b of a notch formed at a tip portion 15a thereof abutting with an outer peripheral side of an upper end portion 5a of the pouring tube 5 and a vertical surface 15c of the notch portion of the pouring tube 5. The inner seal ring 14 bites into the inner periphery 5b of the extraction cylinder 5 by sliding in contact with the outer peripheral surface 5d, and the distal end portion 14a of the inner seal ring 14 presses the valve element E. Further, the extraction cylinder 5 Can be prevented from being crushed.

After using a container, the aspect which separates and discards the hinge cap of a present Example is demonstrated.
First, when the hinge cap of the present embodiment is opened, the upper lid D is gripped and pulled outward, the connecting portion of the cap body B with the hinge C of the outer cylinder 9 is pulled and deformed, and the thin connecting portion 9d Is torn and is broken from the upper end of the outer cylinder 9 to the position of the bottom of the slit groove 9a.
Thereafter, when the upper lid D is further pulled, the thin vertical portion 9e is torn, the thin peripheral portion 9b of the slit groove 9a is torn from the thin connecting portion 9d side, and the outer and lower sides of the slit groove 9a of the outer cylinder 9 are separated. To go.
The outer periphery of the outer cylinder 9 engaged with the outer periphery of the mouth 1 of the container A is formed by cutting the thin peripheral portion 9b of the outer cylinder 9 and separating the outer and lower sides of the slit groove 9a of the outer cylinder 9 from each other. And the engagement with the engaging protrusion 10 is released.
Furthermore, when the upper lid D or the separated outer cylinder 9 is pulled upward, the cap body B can be easily removed from the mouth portion 1 of the container A, and the cap and the container can be separated and discarded.
In this embodiment, the cap and the container are easily separated, but a conventional cap having no cap-container separation mechanism such as a slit groove or a thin wall portion may be used.

Moreover, in the said Example, although the valve body E is provided in the inside of the extraction pipe | tube 5, the valve body E does not need to be provided.
Furthermore, in the said Example, although the center of the extraction pipe | tube 5 of the cap main body B was eccentrically formed from the center of the upper wall 4 to the other side of the hinge C, the center of the extraction | pouring cylinder was made to correspond with the center of an upper wall. It is good also as a cap body.
Further, in the above embodiment, the container A to which the hinge cap is attached is squeezed to extrude the liquid, but it may be a type to extract the liquid simply by tilting the container.

The hinge cap of the second embodiment is the embodiment described with reference to FIGS. 1 to 4 except that the shape of the dispensing cylinder and the attachment position of the valve body are different and the outer support ring that is the support portion is not provided. Since this embodiment has the same structure as the hinge cap 1, the second embodiment will be described below with the same reference numerals as the first embodiment, focusing on the differences from the first embodiment.
In FIG. 5, A is a container, B is a cap body, C is a hinge, and D is an upper lid connected to the cap body B via the hinge C, as in the first embodiment.

The container A is a squeeze-type container that extrudes liquid, and a cap body B of a hinge cap is attached to the mouth of the container A.
The cap body B is composed of the mounting portion 3, the upper wall 4, and the extraction cylinder 5. The extraction cylinder 5 is low on the hinge C side in this embodiment 2 to guide the liquid to be extracted. The opposite side is formed high, and the tip portion 5a extends in a trumpet shape.
Further, a valve body E is provided at a predetermined position on the inner periphery of the dispensing cylinder 5.

The upper lid D is pivotally attached to the outer peripheral upper end of the outer cylinder 9 of the cap main body B via the hinge C, and is suspended from the top wall 12 formed in a thin dome shape and the periphery thereof. Side peripheral wall 13.
An inner seal ring 14 is provided on the back surface of the top wall 12 so as to seal the upper part of the inner periphery of the dispensing tube 5. The inner periphery of the lower end of the side peripheral wall 13 is connected to the lid locking portion 6 of the cap body B. An engaging convex portion 16 and an engaging concave portion 17 provided with an engaging protrusion below are formed.
The convex portion 16 may be formed over the entire circumference or may be formed at intervals.

  The valve body E is composed of a disc-shaped shielding plate 21 on the inner periphery 5b of the dispensing cylinder 5 and a rectangular connecting piece 22 that connects the shielding plate 21 to the inner periphery 5b of the dispensing cylinder 5 in this embodiment. Then, the connection between the shielding plate 21 and the inner periphery 5 b of the dispensing cylinder 5 is provided on the side opposite to the hinge C via the connection piece 22.

Next, usage modes and effects of the second embodiment will be described.
As shown in FIG. 5, the hinge cap according to the second embodiment is filled with liquid in a state in which the upper lid D is closed and the cap body B and the upper lid D are sealed by the unauthorized opening prevention mechanism, as in the first embodiment. The container A is plugged into the mouth.
If the container A in the closed state is accidentally dropped and dropped, the top wall 12 of the upper lid D collides with the floor surface and is crushed and the side peripheral wall 13 expands. In the cap, the convex portion 16 formed on the inner periphery of the lower end portion of the side peripheral wall 13 of the upper lid D is constrained by the inner periphery of the lid locking portion 6 of the cap body B and cannot further spread, so that the upper lid D is deformed. Can be prevented from opening.
In the hinge cap of the second embodiment, the distal end portion 5a of the dispensing cylinder 5 is not a nozzle shape, but spreads in a trumpet shape. Therefore, like the hinge cap of the first embodiment, from the back surface of the top wall 12 of the upper lid D. Although the outer support ring which is a support part cannot be suspended, the convex part 16 engaged with the cover latching | locking part 6 of the cap main body B is formed in the inner periphery of the lower end part of the side surrounding wall 13 as mentioned above. Therefore, it is possible to cope with an inverted fall sufficiently.
In this embodiment, as in the first embodiment, the cap and container are easily separated. However, even in the case of a conventional cap having no cap-container separation mechanism such as a slit groove or a thin wall portion. Good.

  In the first and second embodiments, the hinge cap in which the thin top wall 12 of the upper lid D has a dome shape has been described. However, since the top wall is not limited to the dome shape, the upper lid is flat. A hinge cap that is formed of a flat top wall and includes a stopper portion will be described as a third embodiment.

6 and 7, as in the first embodiment, A is a container, B is a cap body, C is a hinge, and D is an upper lid that is connected to the cap body B via the hinge C.
The mouth 31 of the container A to which the cap main body B is attached is provided with an engaging protrusion 32 that protrudes in an annular shape and a constricted portion 33 that extends below the engaging protrusion 32.

As shown in FIGS. 6 and 7, the cap body B includes a partition wall 34 that seals the inside of the container A, an inner wall that hangs down from the periphery of the partition wall 34, and is fitted to the inner periphery of the mouth portion 31 of the container A. A cylinder 35, a base wall 36 connected to the periphery of the partition wall 34 together with the upper end of the inner cylinder 35, an outer cylinder 37 connected to the outer periphery of the base wall 36 and fitted to the outer periphery of the mouth portion 31, and a base wall 36, which is provided on the outer peripheral surface of the upper end 36 and is connected to the upper lid D so as to be in a closed state, and is connected to the outer periphery of the lower end of the outer cylinder 37 at a constant interval. The outer cylinder part 39 which connects the hinge C in a predetermined part, and the extraction | pouring cylinder 40 standingly arranged on the partition 34 connected from the lower end inner periphery of the inner cylinder 35 are comprised.
In the present embodiment, the dispensing cylinder 40 is formed so that the hinge C side is low and the dispensing side opposite to the hinge C is high, and its distal end portion 40a extends in a trumpet shape. .

The partition wall 34 is formed inside the pouring tube 40 and is provided with a breakable thinned portion 41. The thinned portion 41 has a removal portion 42 that forms a spout that communicates with the inside of the container when the thinned portion 41 is broken. It is defined.
A pull ring 44 is continuously provided on the hinge C side of the removing portion 42 via a support column 43, and a buffer portion 45 is formed on the lower portion of the pull ring 44 opposite to the hinge C to soften the contact pressure to the fingertip. Has been.
In the present embodiment, the partition wall 34 is hermetically sealed until the thinned portion 41 is broken and opened. However, the partition wall 34 having a pre-opened spout may be used.

The lid locking portion 38 is formed as a bulging portion 46 that protrudes from the outer peripheral surface of the upper end of the base wall 36, and an engaging recess 47 is formed below the bulging portion 46.
The outer cylinder 37 is formed with an annular fitting protrusion 48 that fits in the constriction recess 33 of the container A on the inner periphery, and a connecting piece 49 provided on the opposite side of the hinge C on the outer periphery of the lower end, An outer peripheral cylindrical portion 39 is continuously provided via a plurality of breakable weakening pieces 50 arranged at intervals, and an upper lid D is continuously provided on the upper end of the outer peripheral cylindrical portion 39 via a hinge C. Yes.
The cap body B is attached to the container A by fitting the mouth 31 of the container A into an annular groove formed by the outer peripheral surface of the inner cylinder 35, the inner peripheral surface of the outer cylinder 37, and the lower surface of the base wall 36. It has become so.

The upper lid D is composed of a top wall 51 and a side peripheral wall 52 suspended from the periphery of the top wall 51, and a thin wall portion 51 a for adjusting internal pressure is formed in the center portion of the top wall 51 by bending inward. On the outer periphery of the side-outside wall 52 opposite to the hinge C on the extraction side, a knob 58 is formed in an arc shape for putting a finger on the opening and closing of the upper lid D.
As shown in FIG. 6, the side peripheral wall 52 forms the vicinity where the knob 58 is provided as a thin portion 52a.
At the lower end portion of the inner periphery of the side peripheral wall 52, a convex portion 53 that engages with the inner periphery of the lid locking portion 38 and an annular reduced diameter protrusion 54 that engages with the engaging concave portion 47 of the lid locking portion 38. Is provided.
The convex portion 53 may be formed over the entire circumference or may be formed at intervals.

An inner seal ring 55 that seals the inner peripheral surface of the dispensing cylinder 40 of the cap body B is suspended from the back surface of the top wall 51.
As shown in FIG. 7B, the inner ring 55 has a hinge C side that is longer in accordance with the height of the distal end portion 40a of the dispensing tube 40, and a dispensing side that is short.

Further, a thin skirt portion 56 set to a predetermined length is extended at the tip of the inner ring 55. The skirt portion 56 is formed thinner than the inner ring 55, and is provided only on the extraction side opposite to the hinge C of the inner ring 55. In the third embodiment, the predetermined arc range is about 120 degrees. Although it is set, it suffices if it is provided at least in the formation range of the knob 58 formed in an arc shape. Depending on the shapes of the inner ring 55 and the dispensing cylinder 40, the preferable arc range can be changed.
In addition, about the shape of the knob | pick part 58, it can change suitably, and it is good also as a shape (concave part etc.) which notched the side peripheral wall 52 of the upper cover D. FIG.
Further, inside the skirt portion 56, vertical ribs 57 are formed at equal intervals in the circumferential direction over the vertical direction.

Next, usage modes and operational effects of this embodiment will be described.
The hinge cap of the third embodiment is attached by being plugged into the mouth 1 of the container A in the closed state shown in FIG.
In order to use the container A equipped with the hinge cap of the third embodiment, as shown in FIG. 7B, the upper lid D is opened, the pull ring 44 is pulled upward, and the removal portion of the partition wall 34 via the column 43 42 is pulled up, the thinned weakened portion 41 is cut, the removed portion 42 is cut off from the partition wall 34 and the stopper is opened, and the spout is opened as shown in FIG.

Since a thin plate-like buffering portion 45 is provided on the lower side of the pull ring 44 opposite to the hinge C, the buffering portion 45 can be easily bent when a finger hits it, and the contact pressure to the finger can be softened. .
When the content liquid is poured out by tilting the container A, the liquid flowing out from the spout is guided to the inner peripheral surface of the pour tube 40 and is poured out from the trumpet-shaped tip 40a.
As shown in FIG. 6, after the use of the container A is finished, when the upper lid D is closed, the reduced diameter protrusion 54 of the side peripheral wall 52 gets over the bulging portion 46 of the lid locking portion 38 of the cap body B and engages. It fits into the recess 47 and returns to the closed state.

  At this time, the outer periphery of the inner seal ring 55 is in contact with the inner peripheral surface of the dispensing cylinder 40 to form a seal portion that is continuous in the circumferential direction. By the seal portion, the inside of the upper lid D is a space communicating with the spout And a space sealed from the spout.

When the lid is opened to use the container A again, when the finger is raised to the knob 58 of the upper lid D, the ring-shaped reduced diameter protrusion 54 that engages with the engagement recess 47 of the lid locking portion 38 is formed. By deforming, the locking of the lid locking portion 38 with the engaging recess 47 is released, and the upper lid D is rotated around the hinge C.
When the locking of the upper lid D with the cap body B is released, the ring-shaped reduced diameter protrusion 54 is slightly deformed, so that the upper lid B is vibrated.
At the same time, as shown in FIG. 7B, the outer periphery of the inner seal ring 55 is also released from contact with the inner surface of the extraction tube 40, and the inner seal ring 55 also vibrates.
However, in the third embodiment, the skirt portion 56 extending from the tip is formed only on the outlet side of the inner seal ring 55, so that when the upper lid D is opened, the inner seal ring 55 and the outlet cylinder are opened. By gradually releasing the contact of 40, the vibration of the inner seal ring 55 itself is attenuated, and the liquid adhering to the skirt portion 56 is prevented from scattering.

Further, the side peripheral wall 52 has a thin-walled portion 52a in the vicinity where the knob portion 58 is formed, so that when the upper lid D and the cap body B are unlocked, the side peripheral wall 52 can be opened with a light force, and the vibration of the upper lid D Can be suppressed.
Accordingly, the content liquid can be further prevented from being scattered by the synergistic effect with the skirt portion 56.
Further, since the vertical ribs 57 are formed on the inner side of the skirt portion 56 in the vertical direction, even if the content liquid adheres to the inner side or the tip of the inner seal ring 55 when the lid is closed, the vertical ribs 57 The liquid is held by and does not sag and scatter when the lid is opened.
In addition, since the vertical ribs 57 are formed on the skirt portion 56, even if the skirt portion 56 is formed thinner than the inner seal ring 55, it is possible to suppress a decrease in strength.
On the other hand, on the hinge C side of the inner seal ring 55, there is no possibility of scattering unlike the pouring side even if liquid is attached, so it is not necessary to form the skirt portion 56.

  Furthermore, when the container A equipped with the hinge cap of the third embodiment is accidentally inverted and dropped in the closed state after unplugging, the top wall 51 of the upper lid D is formed with the thin portion 51a. However, in the hinge cap of this embodiment, the convex portion 53 formed on the inner periphery of the lower end portion of the side peripheral wall 52 of the upper lid D has a cap body B. It is restrained by the inner periphery of the lid locking portion 38 and cannot spread further, so that it is possible to prevent the upper lid D from being deformed and opened.

Further, the hinge cap of the third embodiment can be separated from the container A and discarded after the container is used.
When the upper lid D is opened and pulled outward, the weakening piece 50 that connects the outer cylinder 37 and the outer cylinder part 39 of the cap body B is broken, and the hinge C side of the outer cylinder part 39 is pulled away from the outer cylinder 37, When the upper lid D is further pulled upward, the outer cylinder 37 can be easily removed from the mouth portion 1 of the container A so as to be turned up from the portion connected to the connecting piece 49.
In this embodiment, the cap and container are easily separated, but a conventional cap without a cap and container separation mechanism may be used.

  The hinge cap of the present invention is not limited to the one in which only the top wall of the upper lid is formed thin as in Examples 1 to 3, but can also be applied to one in which the side peripheral wall is thin. By preventing the top cover from being crushed and the side wall from spreading, it is possible to prevent the top cover from being deformed, so it can be applied regardless of the shape of the top wall of the top cover and requires a sanitary use environment. It can be widely used as a cap for a liquid dispensing container, and is particularly suitable as a cap for a container filled with a skin cleanser, cooking oil, liquid seasoning or the like.

A Container B Cap body C Hinge D Upper lid E Valve body 1, 31 Mouth part 2 Mating protrusion 3 Attached part 4 Upper wall 5, 40 Outlet cylinder 5 a, 40 a Tip part 5 b Inner circumference 5 c Fastening part 5 d Outer face 6 38 Lid Locking Section 7 Base Wall 8, 35 Inner Cylinder 9, 37 Outer Cylinder 9a Slit Groove 9b Thin Perimeter 9c Outer Perimeter Recess 9d Thin Connection 9e Thin Vertical 10 Engaging Projection 11 Outlet 12, 51 Top Wall 13, 52 Side peripheral walls 13a, 52a Thin-walled portions 14, 55 Inner seal ring 14a Tip portion 14b Outer periphery 15 Support portion (outer support ring)
15a Tip 15b Flat surface 15c Vertical surface 16, 53 Protrusion 17 Locking recess 18, 58 Knob 18a Recess 19 Sealing plate 19a Sealing locking portion 19b Outer periphery 19c Bottom plate 19d Weaked connecting piece 20 Clearance 21 Shielding plate 21a Outer end 22 connection piece 32 engagement protrusion 33 constriction recess 34 partition wall 36 base wall 39 outer peripheral cylinder part 41 thinning weakening part 42 removal part 43 support 44 pull ring 45 buffer part 46 bulging part 47 engagement recess 48 fitting protrusion 49 connection piece 50 Weakening piece 51a Thin portion 54 Reduced diameter protrusion 55a Fastening portion 56 Skirt portion 57 Vertical rib

Claims (5)

A hinge cap comprising a cap body to be attached to the mouth of the container and a thin upper lid connected to the cap body via a hinge,
The cap body includes a mounting portion that is attached to the mouth portion of the container, an upper wall that extends inward from the upper end of the mounting portion and seals the opening of the mouth portion, and is provided on the outer peripheral surface of the upper end of the upper wall and is locked to the upper lid. It consists of an annular lid locking part that holds the closed lid state, and a pouring cylinder that stands up around the pouring hole that penetrates the upper wall,
The upper lid is composed of a top wall and a side wall suspended from the periphery of the top wall.
On the back surface of the top wall, a cylindrical inner seal ring that seals the inner peripheral surface of the dispensing cylinder of the cap body is suspended,
On the inner periphery of the lower end portion of the side peripheral wall, there are formed an engaging recess provided with an engaging protrusion on the lower side that engages with the outer periphery of the lid locking portion of the cap body, and a convex portion that engages with the inner periphery of the lid locking portion. A hinge cap characterized by that. A hinge cap comprising a cap body to be attached to the mouth of the container and a thin upper lid connected to the cap body via a hinge,
The cap body includes a mounting portion that is attached to the mouth portion of the container, an upper wall that extends inward from the upper end of the mounting portion and seals the opening of the mouth portion, and is provided on the outer peripheral surface of the upper end of the upper wall and is locked to the upper lid. It consists of an annular lid locking part that holds the closed lid state, and a pouring cylinder that stands up around the pouring hole that penetrates the upper wall,
The upper lid is composed of a top wall and a side wall suspended from the periphery of the top wall.
On the inner periphery of the lower end portion of the side peripheral wall, an engagement concave portion is formed with an engagement ridge provided below to engage with the outer periphery of the lid locking portion of the cap body.
On the back surface of the top wall, a cylindrical inner seal ring that seals the inner peripheral surface of the dispensing cylinder of the cap body, and a support portion that contacts the upper end surface and the outer circumferential surface of the dispensing cylinder are suspended. A hinge cap characterized by. A hinge cap comprising a cap body to be attached to the mouth of the container and a thin upper lid connected to the cap body via a hinge,
The cap body includes a mounting portion that is attached to the mouth portion of the container, an upper wall that extends inward from the upper end of the mounting portion and seals the opening of the mouth portion, and is provided on the outer peripheral surface of the upper end of the upper wall and is locked to the upper lid. It consists of an annular lid locking part that holds the closed lid state, and a pouring cylinder that stands up around the pouring hole that penetrates the upper wall,
The upper lid is composed of a top wall and a side wall suspended from the periphery of the top wall.
On the back surface of the top wall, a cylindrical inner seal ring that seals the inner peripheral surface of the dispensing cylinder of the cap body, and a support portion that contacts the upper end surface and the outer circumferential surface of the dispensing cylinder are suspended.
On the inner periphery of the lower end portion of the side peripheral wall, there are formed an engaging recess provided with an engaging protrusion on the lower side that engages with the outer periphery of the lid locking portion of the cap body, and a convex portion that engages with the inner periphery of the lid locking portion. A hinge cap characterized by that.   The hinge cap according to any one of claims 1 to 3, wherein the top wall of the upper lid has a dome shape.   4. The hinge cap according to claim 1, wherein the top wall of the upper lid is flat.

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