JP6000189B2 - Hinge cap - Google Patents

Description

  The present invention relates to a hinge cap in which an upper lid is connected to a cap base attached to a mouth portion of a container via a hinge, and in particular, a hinge cap that firmly fits an engaging portion between the upper lid and the cap base when the lid is closed. It is about.

In a hinge cap consisting of a cap base and an upper lid attached to the mouth of the container, the contents are filled into the container, and after the hinge cap is plugged, a hot water shower is applied from the outside of the container to wash it. It has been done normally.
In order to prevent the air inside the cap from rising due to warming by the hot water shower and opening the lid, the outer peripheral wall of the upper lid is made thick so that deformation of the outer peripheral wall is suppressed, and the cap base and the upper lid It is well known that the fitting is firmly maintained to prevent the lid from being opened.

  In addition, the outer peripheral wall of the upper lid is thickened, the deformation of the outer peripheral wall is suppressed, the engagement of the engaging portion between the cap base and the upper lid is strengthened when the lid is closed, and the lid is not easily opened. 2. Description of the Related Art A hinge cap that can be easily separated from a container and separated and discarded is known (see, for example, Patent Document 1).

JP 2004-155488 A

  However, in the well-known and the hinge cap described in Patent Document 1, since the deformation of the outer peripheral wall of the upper lid is suppressed, conversely, when the lid is opened, the fitting between the cap base and the upper lid can be easily removed. There was a problem that I could not.

  An object of the present invention is to solve the above-described problems. When the lid is closed, the engagement of the engaging portion between the cap base and the upper lid is strengthened so that the lid is not easily opened. An object of the present invention is to provide a hinge cap that can be opened with a weak force.

  In order to solve the above-mentioned problems, the present invention provides a hinge cap that is attached to a container mouth as a hinge cap and includes a cap base and an upper lid. The cap base includes an outer cylinder that fits into the container mouth, a ring shape, and the like. An upper wall, a lid locking part standing on the upper wall, and a pouring tube standing on the inner edge of the upper wall. The upper lid is provided with a top wall, an outer peripheral wall, and an inner peripheral wall, and an outer peripheral lower wall is formed in the lower portion of the outer peripheral wall. In the lower part of the inner periphery, a bulging ring is provided with the upper part in contact with the lower part of the locking protrusion of the lid engaging part, and on the opposite side of the hinge on the outer peripheral lower wall, there is a knob at the lower end. A thin wall portion is formed below the upper end portion of the bulging ring on the opposite side of the outer peripheral lower wall hinge, and is configured to be deformable.

  As an embodiment of the outer peripheral lower wall of the outer peripheral wall of the upper lid, a configuration is adopted in which the outer periphery of the outer peripheral lower wall is expanded toward the lower end.

  As an example of the outer peripheral lower wall, a horizontal recess is formed from the upper part of the outer peripheral knob on the opposite side of the outer lower wall hinge toward the inner peripheral side of the bulging ring, and between the horizontal concave part and the bulging ring. The thickness of the wall portion of the outer wall is thin, or in the vicinity of the connecting portion of the outer peripheral knob on the opposite side of the outer peripheral lower wall hinge, A configuration is adopted in which a bottom recess having a height lower than that of the upper surface is provided, and the thickness of the wall between the bottom recess and the lower end surface of the outer peripheral lower wall is thin.

  As an example of the cap base, an outer cylinder of the cap base has an upper surface that extends from the vicinity of one side of the connecting portion of the hinge toward the center of the hinge and extends over an arc range of a predetermined circumferential angle, and has a predetermined depth. The slit groove that is cut to the depth is recessed, and the inner peripheral side of the bottom of the slit groove is formed thin enough to break between the inner periphery of the outer cylinder and the vicinity of the hinge side end of the slit groove of the outer cylinder The outer peripheral recess is formed from the outer periphery, and the space between the outermost recess of the outer peripheral recess and the inner periphery of the outer cylinder is formed in a thin wall that can be broken in the vertical direction. The space is formed in a thin shape that can be broken in the vertical direction.

  As a specific embodiment of the upper lid, a configuration characterized in that the top wall of the upper lid is flat is adopted, and a configuration characterized in that the top wall of the upper lid is dome-shaped is adopted.

  The hinge cap of the present invention has a lower outer peripheral wall whose inner periphery is fitted to the outer periphery of the lid locking portion at the lower part of the outer peripheral wall of the upper lid, and a part of the lower wall of the outer peripheral lower wall is thin and deformable. Therefore, when the lid is opened, the thin-walled portion can be deformed, and the fitting between the outer periphery of the cap latching portion of the cap base and the outer peripheral lower wall of the upper lid can be easily and with a weak force. Even if the cap base is firmly fitted, the lid can be easily opened.

  Further, a slit groove that is recessed from the upper surface and an outer periphery recessed portion that is recessed from the outer periphery are disposed on the outer cylinder of the cap base, and the inner peripheral side of the bottom of the slit groove is between the inner periphery of the outer cylinder. It is formed in a thin wall that can be broken, and it is formed in a thin wall that can be broken in the vertical direction between the outermost concave portion of the outer circumferential recess and the inner circumference of the outer cylinder, and it is broken in the vertical direction between the outer circumferential recess and the slit groove end. Each thin wall is cut in order by pulling the hinge, and the outer cylinder is torn and deformed, and the hinge cap can be easily separated and discarded from the mouth of the container.

  Furthermore, the hinge cap according to the present invention has the upper lid firmly fitted to the cap base regardless of the shape of the upper lid, for example, the top wall is flat or dome-shaped. But it can be opened easily.

It is explanatory drawing of the hinge cap of 1st Example of this invention, (a) is a sectional side view, (b) is a front view, (c) is a principal part enlarged view of (a). It is explanatory drawing at the time of lid opening of a hinge cap, (a) is a top view, (b) is a side view. It is explanatory drawing of a cap base | substrate, (a) is a principal part enlarged view of Fig.2 (a), (b) is an enlarged view of the OO line cross section of Fig.2 (a). It is explanatory drawing of a hinge cap, (a) is a principal part enlarged view of a lid | cover initial stage, (b) is a principal part enlarged view of a lid | cover middle stage. It is explanatory drawing of the hinge cap of the modified example of 1st Example, (a) is a sectional side view, (b) is a front view, (c) is a principal part enlarged view of (a). It is explanatory drawing of the hinge cap of 2nd Example, (a) is a sectional side view, (b) is a front view, (c) is a principal part enlarged view of (a). It is explanatory drawing of a hinge cap, (a) is a principal part enlarged view of a lid | cover initial stage, (b) is a principal part enlarged view of a lid | cover middle stage. It is explanatory drawing of the hinge cap of 3rd Example, (a) is a sectional side view, (b) is the principal part enlarged view of (a). It is explanatory drawing at the time of lid opening of a hinge cap, (a) is a top view, (b) is a sectional side view.

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

In FIG. 1, A is a cap base that is attached to the container mouth 1, and B is an upper lid that is connected to the cap base A via a hinge C.
A fitting protrusion 2 is provided on the outer periphery of the container mouth 1.

  As shown in FIGS. 1 to 3, the cap base A includes an outer cylinder 5 connected to the upper lid B by a hinge C, a ring-shaped upper wall 6 connected to the upper inner peripheral side of the outer cylinder 5, A lid locking portion 7 that is erected on the outer peripheral side of the upper surface of the wall 6 and engages with the upper lid B, an inner cylinder 8 that is suspended from the lower surface of the upper wall 6, and is erected on the inner peripheral side of the upper surface of the upper wall 6. And a partition wall 10 provided continuously from the upper wall 6 to the inner edge of the extraction cylinder 9.

On the inner peripheral lower part of the outer cylinder 5, an engaging protrusion 11 is formed whose upper part comes into contact with the lower part of the fitting protrusion 2 after the cap is plugged.
The cap base A prevents the engagement protrusion 11 from falling out of the container mouth portion 1 by fitting with the fitting protrusion 2, and the inner periphery of the outer cylinder 5 and the outer periphery of the inner cylinder 8 are connected to the container mouth. By fitting with the outer periphery and inner periphery of the part 1, the container mouth part 1 is securely sealed and attached.

The outer cylinder 5 is provided with a hinge C in a certain range on the outer peripheral upper part, and on the upper surface of the outer cylinder 5 from one side of the connecting part of the hinge C toward the center of the hinge C. A slit groove 12 extending over an arc range of a predetermined circumferential angle and cut to a predetermined depth is provided as a recess.
Further, the inner peripheral side of the bottom portion of the slit groove 12 is thin between the inner periphery of the outer cylinder 5 and a circumferential thin portion 13 that can be broken is formed.

In the vicinity of the end of the slit groove 12 of the outer cylinder 5 on the hinge C side, there is disposed an outer peripheral recess 15 which is cut from above in a substantially V shape in plan view, leaving a thin wall 14 from the outer periphery to the lower end. The engaging protrusion 11 on the inner peripheral surface corresponding to the outer peripheral recess 15 is provided with a cut recess 16 in the vertical direction from the inner periphery, and the portion of the outer cylinder 5 is a thin wall that can be broken in the vertical direction. It is the vertical direction thin part 17 formed in this.
Moreover, the part which does not form the slit groove 12 and the outer periphery recessed part 15 of the outer cylinder 5 becomes the connection part 18 which does not fracture | rupture.

  Between the outer periphery recessed part 15 of the outer cylinder 5, and the slit groove 12 edge part, it forms in the thin wall which can be fractured | ruptured, and becomes the thin connection part 19. FIG.

  A locking ridge 20 projects from the outer periphery of the lid locking portion 7.

The partition wall 10 is formed with a removal portion 21 that forms an opening for pouring the contents inside the container body through a weakening portion 22, and the removal portion 21 has a support column 23 erected on the hinge C side. A finger ring 24 that pulls up and removes the removing portion 21 is provided continuously.
A buffer piece 25 for softening the contact pressure to the fingertip is formed on the lower portion of the finger ring 24 opposite to the hinge C.

  As shown in FIGS. 1 and 2, the upper lid B is suspended from the top wall 30 and the periphery of the top wall 30. The outer peripheral wall 31 which continues C is provided, and the inner peripheral wall 32 which is hung by the lower surface of the top wall 30 and is inserted in the inner periphery of the extraction | pouring cylinder 9 of the cap base | substrate A is provided.

The lower inner periphery of the outer peripheral wall 31 is notched from the lower end to a predetermined height. The lower surface 33 contacts the upper surface of the lid locking portion 7 of the cap base A when the cover is closed, and the outer periphery is lower than the lower surface 33. An outer peripheral lower wall 34 whose inner periphery is fitted to the outer periphery of the lid locking portion 7 is formed.
An air vent groove 35 is recessed at a predetermined position on the lower surface 33.

  A bulging ring 36 is formed on the inner periphery of the outer peripheral lower wall 34. The bulging ring 36 is formed from the lower end portion, and the upper portion comes into contact with and locks the lower portion of the locking protrusion 20 of the lid locking portion 7 when the lid is closed. .

  On the outer periphery of the outer peripheral lower wall 34 opposite to the hinge C, it extends in the circumferential direction from the center to a predetermined position on both sides with a width from a certain level lower than the most convex portion of the inner peripheral bulging ring 36 to the lower end. A knob 37 is provided.

A lateral recess 38 extending from the center to a predetermined position on both sides is formed on the outer periphery of the outer peripheral lower wall 34 above the upper end portion of the knob 37.
The lateral recess 38 may be formed to any position as long as it is within the range from the width substantially the same as the lateral width of the knob 37 to the vicinity of the root of the hinge C.

The lateral recess 38 is formed such that the most recessed portion is formed at a height lower than the most convex portion of the bulging ring 36 on the inner periphery, and has a lower height near the most recessed portion of the lateral recessed portion 38 and the most convex portion of the bulging ring 36. The thickness of the outer peripheral lower wall 34 is a thin wall portion 34 a that is thinner than the thickness of the other outer peripheral lower walls 34.
Since the range of the thin wall portion 34a is formed by the lateral width of the lateral recess 38, it is formed within the range from the width approximately the same as the lateral width of the knob 37 to the vicinity of the root of the hinge C.

Next, the effect of the hinge cap of a present Example is demonstrated.
First, a container in which the hinge cap after the upper lid B is closed to the cap base A and the contents are filled with the lower inner circumference of the outer peripheral wall 31 of the upper lid B and the lid engaging portion 7 of the cap base A is closed. The container mouth 1 is stoppered.

  When the lid is closed, air remains in the sealed chamber due to the fitting between the lower inner circumference of the outer peripheral wall 31 of the upper lid B and the lid engaging portion 7 of the cap base A, but the upper lid B is lowered during the stoppering. As a result, the lower surface of the outer peripheral wall 31 slightly expands outward due to the contact between the upper surface of the lid locking portion 7 of the cap base A and the lower surface 33 of the outer peripheral wall 31 of the upper cover B, and the air is sealed and compressed indoors. Can be discharged outwardly from the gap between the inner periphery of the outer peripheral lower wall 34 of the outer peripheral wall 31 and the outer periphery of the lid engaging portion 7 through the air vent groove 35 of the lower surface 33.

  The compressed air in the cap is discharged by pressing from the upper side against the upper lid B at the time of the stoppering, and when the stoppering is finished, the upper lid B is quickly restored to the cap base A and the inside of the cap is sealed. The inside of the cap is slightly negative pressure.

  Since the inside of the cap is slightly negative pressure, a hot water shower is performed to wash the container, and even if the cap is pressurized and heated, the pressure on the top lid B does not rise so that the top lid B It is possible to prevent the lid from being opened.

When opening the hinge cap, the knob 37 of the upper lid B is lifted upward.
When the knob 37 is lifted, the thin wall portion 34a of the outer peripheral lower wall 34 of the outer peripheral wall 31 is thinner than the other walls of the outer peripheral lower wall 34. Therefore, as shown in FIG. The thin wall portion 34a is deformed from the side of the piece 37, and the portion of the outer peripheral lower wall 34 near the knob 37 is lifted.

  When the thin wall portion 34 a of the outer peripheral lower wall 34 is deformed and the vicinity of the knob piece 37 of the outer peripheral lower wall 34 is lifted, the bulging ring 36 near the knob piece 37 moves outward and upward, and the engagement of the lid locking portion 7 The locking with the stop ridge 20 is released.

  Further, when the upper lid B rotates around the hinge C and the knob 37 side is lifted, as shown in FIG. 4B, the inner periphery of the outer peripheral lower wall 34 and the outer periphery of the lid engaging portion 7 are fitted. It is removed from the side of the knob piece 37 and the upper lid B is opened.

  The hinge cap of the present embodiment is provided with a thin wall portion 34a on the outer peripheral lower wall 34 of the outer peripheral wall 31 of the upper lid B, so that the inner periphery of the outer peripheral lower wall 34 and the outer periphery of the lid engaging portion 7 of the cap base A Even if the fitting is strong, when the lid is opened, the thin wall portion 34a of the outer peripheral lower wall 34 in the vicinity of the knob 37 is first deformed, and the bulging ring 36 of the outer peripheral lower wall 34 and the lid are locked from that portion. Since the locking of the portion 7 with the locking protrusion 20 is released, there is no resistance to the lift of the upper lid B on the side of the knob 37, and the knob 37 on the outer peripheral wall 31 of the upper lid B with a weaker force. Can be raised with the hinge C as a fulcrum, and can be easily opened.

  In addition, since the outer periphery of the outer peripheral lower wall 34 of the outer peripheral wall 31 of the upper lid B is expanded toward the lower end, the shape retaining property of the wall other than the portion where the lateral recess 38 of the outer peripheral lower wall 34 is recessed is provided. The fitting of the inner periphery of the outer peripheral lower wall 34 and the outer periphery of the lid locking portion 7 of the cap base A is maintained, and the lid is not easily opened unless the knob 37 is lifted.

  In using the contents, after opening the hinge cap, by placing a finger on the finger ring 24 of the cap base A and pulling, the weakened portion 22 is cut, and the removing portion 21 is removed from the partition wall 10 and opened. The container is tilted, and the contents in the container are poured out through the dispensing cylinder 9 of the cap base A and used.

  When separating and discarding the hinge cap of the present invention after using the container, first, the hinge cap of the present invention is opened, the upper lid B is gripped and pulled outward, and the outer cylinder 5 of the cap base A is removed. The connecting portion with the hinge C is pulled and deformed, the thin connecting portion 19 is torn, and is broken from the upper end of the outer cylinder 5 to the position of the bottom of the slit groove 12.

  Thereafter, when the upper lid B is further pulled, the tear of the thin connecting portion 19 is transmitted to the vertical thin portion 17, the lower portion of the vertical thin portion 17 is torn, the thin wall 14 is further torn, and the slit groove 12 The circumferential thin portion 13 is torn from the thin connecting portion 19 side, and the outer and lower sides of the slit groove 12 of the outer cylinder 5 are separated.

The outer thin portion 13 in the circumferential direction of the outer cylinder 5 is cut and the outer and lower sides of the slit groove 12 of the outer cylinder 5 are separated from each other, so that the outer periphery of the container mouth 1 of the container and the inner cylinder 5 of the cap base A The circumference and the engagement with the engagement protrusion 11 are removed.
Further, when the upper lid B or the separated outer cylinder 5 is pulled upward, the cap base A can be easily removed from the container mouth portion 1, and the cap and the container can be separated and discarded.

The outer peripheral wall 31 of the first embodiment is formed so that the outer peripheral lower portion expands downward toward the bottom. As another example of the shape of the outer peripheral wall 31, as shown in FIG. The outer periphery of 31 has a shape that hangs vertically, and a horizontal recess 38 is formed in the outer periphery above the knob 37 at a height lower than the most convex part of the bulging ring 36 on the inner periphery of the outer peripheral lower wall 34. It may be.
Even if the thin wall portion 34a is formed on the outer peripheral lower wall 34 by the lateral recess 38 and the fitting between the inner periphery of the outer peripheral lower wall 34 and the outer periphery of the lid engaging portion 7 of the cap base A is strong, First, the thin wall portion 34a of the outer peripheral lower wall 34 near the knob 37 is deformed, and the bulge ring 36 of the outer peripheral lower wall 34 and the locking protrusion 20 of the lid locking portion 7 are locked from that portion. Since it is removed, there is no resistance to the lift on the side of the knob 37 of the upper lid B, and the knob 37 on the outer peripheral wall 31 of the upper lid B can be raised with the hinge C as a fulcrum with a weaker force. Can be opened.

Next, a second embodiment in which the configuration of the outer peripheral wall of the upper lid of the first embodiment is changed will be described.
In the present embodiment, the same components as those in the first embodiment will be denoted by the same reference numerals, detailed description thereof will be omitted, and differences will be mainly described.

  In FIG. 6, A is a cap base, and Ba is an upper lid connected to the cap base A via a hinge C.

  The upper lid Ba is suspended from the top wall 30 and the peripheral edge of the top wall 30, and the outer peripheral wall 40 has a lower outer peripheral diameter that expands downward toward the bottom, and a hinge C that is continuously provided at a predetermined position at the lower end of the outer periphery. The inner wall 32 is provided on the lower surface of the top wall 30 and is inserted into the inner periphery of the extraction tube 9 of the cap base A.

  The lower part of the outer peripheral wall 40 is formed with an outer peripheral lower wall 41 that is formed so that the outer periphery spreads toward the end, and the inner periphery engages with the outer periphery of the lid engaging portion 7 of the cap base A when the lid is closed.

  On the inner periphery of the outer peripheral lower wall 41, there are an upper portion, a locking recess 42 that is recessed in a shape that fits in the vicinity of the most convex portion of the locking protrusion 20 of the lid locking portion 7 when the lid is closed, and a lower portion. A bulging ring 43 is formed which protrudes from the lower end of the locking recess 42 and whose upper part comes into contact with the lower part of the locking protrusion 20 of the lid locking part 7 and locks.

  A knob 44 extending in the circumferential direction from the center to a predetermined position on both sides is disposed on the outer periphery of the outer peripheral lower wall 41 on the opposite side of the hinge C. A bottom recess 45 having a height lower than the upper surface of the knob is formed from above along the bottom.

  The wall thickness between the vicinity of the most concave portion of the bottom concave portion 45 of the outer peripheral lower wall 41 and the lower end surface of the outer peripheral lower wall 41 is a thin wall portion 41a that is thinner than the thickness of the other walls.

Next, the effect of the hinge cap of a present Example is demonstrated.
First, the hinge cap after the upper lid Ba is closed to the cap base A by fitting the inner periphery of the lower portion of the outer peripheral lower wall 41 of the outer peripheral wall 40 of the upper lid Ba and the outer periphery of the lid engaging portion 7 of the cap base A, The container is filled into the container mouth 1 of the container.

When opening the hinge cap, the knob 44 of the upper lid Ba is lifted upward.
When the knob 44 is lifted, the thin wall portion 41a of the outer peripheral lower wall 41 is thinner than the other walls of the outer peripheral lower wall 41. Therefore, as shown in FIG. The wall 41a is deformed.

  When the thin wall portion 41a of the outer peripheral lower wall 41 is deformed, the knob 44 is raised, and the bulging ring 43 in the vicinity of the knob 44 of the outer peripheral lower wall 41 is pulled upward and the bulging ring 43 and the cap base A cover. The latching | locking with the latching protrusion 20 of the latching | locking part 7 is removed.

  Further, when the upper cover Ba rotates around the hinge C and the knob 44 side is lifted, as shown in FIG. 7B, the inner periphery of the outer peripheral lower wall 41 and the outer periphery of the lid engaging portion 7 of the cap base A Is removed from the knob 44 side, and the upper cover Ba is opened.

  The hinge cap of the present embodiment is provided with a bottom recess 45 from above on the outer periphery of the outer peripheral lower wall 41 at the lower end of the outer peripheral wall 40 of the upper lid Ba, and by providing a thin wall portion 41a. Even when the fitting between the cap base A and the outer periphery of the lid engaging portion 7 is strong, when the lid is opened, the thin wall portion 41a of the outer peripheral lower wall 41 near the knob 44 is first deformed, Since the locking between the bulging ring 43 of the outer peripheral lower wall 41 and the locking protrusion 20 of the lid locking portion 7 is released, there is no resistance to the lift of the upper lid Ba on the side of the knob 44, and it is weaker. With force, the knob 44 side of the outer peripheral wall 40 of the upper lid Ba can be raised with the hinge C as a fulcrum, and the lid can be easily opened.

Further, the bottom recess 45 is recessed from above the outer peripheral lower wall 41, and when the upper lid Ba is removed from the molding die at the time of cap molding, no resistance is applied to the portion of the outer periphery of the outer peripheral wall 40. It will be good.
Other functions and effects are the same as those of the first embodiment.

In the first embodiment and the second embodiment, the top cap 30 of the upper lids B and Ba has been described as being flat and the hinge cap having a stopper portion has been described. However, the shape of the upper lid is not limited to that having a flat top wall. Since various shapes can be adopted, the third embodiment will be described as a hinge cap having an upper lid having a dome-shaped top wall and no plugging portion.
In the present embodiment, the same components as those in the first embodiment and the second embodiment will be denoted by the same reference numerals, detailed description thereof will be omitted, and differences will be mainly described.

In FIGS. 8 and 9, Aa is a cap base attached to the container mouth portion 1, and Bb is an upper lid connected to the cap base Aa via a hinge C.
The cap base Aa is erected on the outer cylinder 5 connected to the upper lid Bb by the hinge C, the flat upper wall 6 connected to the upper inner peripheral side of the outer cylinder 5, and the upper outer peripheral side of the upper wall 6. And a lid locking portion 7 that engages with the upper lid Bb, an inner cylinder 8 that is suspended from the lower surface of the upper wall 6, and a dispensing cylinder 9 that is erected on the inner peripheral side of the upper surface of the upper wall 6. ing.

  In the upper wall 6, a pouring hole 46 is formed in a portion connected to the pouring cylinder 9, and the pouring cylinder 9 has a low hinge C side in this embodiment in order to guide the contents to be poured, The side opposite to the hinge C is formed high, and the tip end portion 9a extends in a trumpet shape.

The upper lid Bb is suspended from the top wall 47 formed in a dome shape, the outer peripheral wall 48 that is connected to the peripheral edge of the top wall 47 and connecting the hinge C to a predetermined position of the lower end of the outer periphery, and the lower surface of the top wall 47. And an inner peripheral wall 32 inserted into the inner periphery of the extraction tube 9 of the cap base Aa.
The lower inner periphery of the outer peripheral wall 48 is notched from the lower end to a predetermined height, and the inner periphery extends outwardly from the lower surface 49 that contacts the upper surface of the lid locking portion 7 of the cap base Aa when the lid is closed. An outer peripheral lower wall 50 that fits with the outer periphery of the lid locking portion 7 is formed.

An inner periphery of the outer peripheral lower wall 50 is formed from a lower end portion, and when the lid is closed, an upper portion is in contact with a lower portion of the locking projection 20 of the lid locking portion 7 to form a bulging ring 51 to be locked. An annular convex portion 52 that engages with the inner periphery of the lid locking portion 7 is formed inside 49.
The annular convex portion 52 of the outer peripheral wall 48 may be formed over the entire circumference or may be formed at intervals.

The outer periphery on the opposite side of the hinge C of the outer peripheral wall 48 extends in the circumferential direction from the center to a predetermined position on both sides, and a lower end wall portion 48a formed downward from a height lower than the upper end portion of the inner peripheral bulging ring 51. The outer peripheral wall 48 is recessed up to the upper end wall portion 48b of the outer peripheral wall 48, and an outer peripheral wall concave portion 53 is formed continuously from the top wall 47. The lower end wall portion 48a has a central portion extending from the center to a predetermined position on both sides. A knob 54 extending in the direction is formed in an arc shape in plan view.
The portion of the outer peripheral wall 48 where the outer peripheral wall concave portion 53 is present has a thinner wall than the outer peripheral wall of other portions.

A lateral recess 55 extending from the center to a predetermined position on both sides is provided on the outer periphery of the outer peripheral lower wall 50 above the upper end of the knob 54.
The lateral recess 55 is sufficient if it has almost the same width as the lateral width of the knob 54, but may be formed at any position within the range from the lateral width of the knob 54 to the vicinity of the root of the hinge C.
The lateral recess 55 is formed such that the most recessed portion is formed at a lower height than the most convex portion of the inner circumferential bulging ring 51 and has a height lower than that of the most concave portion of the lateral recessed portion 55 and the most convex portion of the bulging ring 51. The wall thickness of the outer peripheral wall 48 is a thin wall portion 48 c that is thinner than the wall thickness of the other outer peripheral lower wall 50.
Since the range of the thin wall portion 48c is formed by the lateral width of the lateral recess 55, it is formed within the range from the width substantially the same as the lateral width of the knob 54 to the vicinity of the root of the hinge C.

As shown in FIGS. 8 and 9, a tamper-opening prevention mechanism is provided on the side opposite to the hinge C of the outer cylinder 5, and a sealing plate having a sealing locking portion 56 a that engages with the knob piece 54 of the upper lid Bb. 56 is connected to the outer periphery of the upper end of the outer cylinder 5.
The sealing plate 56 has an outer peripheral portion 56 b formed along the outer peripheral edge of the knob piece 54, and a seal locking portion 56 a is provided at the upper center of the outer peripheral portion 56 b so as to cover the upper surface of the knob piece 54. It has become.
A bottom plate 57 is continuously provided from the lower end of the outer peripheral portion 56b of the sealing plate 56. The bottom plate 57 is disposed on both sides of the sealing locking portion 56a in plan view so as to be positioned on the lower surface of the knob 54, and includes a plurality of bottom plates 57. The weakened connecting piece 58 is connected to the outer cylinder 5.

Next, the effect of the hinge cap of a present Example is demonstrated.
As shown in FIG. 8, the hinge cap of the present embodiment is closed by closing the upper lid Bb and sealing the cap base Aa and the upper lid Bb by the unauthorized opening prevention mechanism, and plugging it into the container mouth portion 1 filled with the contents. Is attached.
When closing the upper lid Bb, the sealing engagement portion 56a is moved outward by the knob 54, and the sealing plate 56 is rotated with the weakening connecting piece 58 bent.
When the upper lid Bb is further pressed, the sealing locking portion 56a gets over and engages with the tip of the knob 54, the sealing plate 56 is restored, the upper lid Bb and the cap base Aa are sealed, and the upper lid Bb is bulged. The ring 51 and the annular convex portion 52 are fitted so as to sandwich the lid locking portion 7 of the cap base Aa, and the upper lid Bb is closed.

In order to open the hinge cap of the present embodiment, the sealing plate 56 is rotated from the state shown in FIG. 8 to release the engagement between the seal locking portion 56a and the knob piece 54, and the weakened connecting piece 58 is The sealing plate 56 is removed by cutting.
Next, when opening the hinge cap, the knob 54 of the upper lid Bb is lifted upward.
When the knob 54 is lifted, the thin wall portion 48c of the outer peripheral lower wall 50 of the outer peripheral wall 48 is thinner than the other walls of the outer peripheral lower wall 50. Therefore, as in the first embodiment, the knob 54 side The thin wall portion 48c is deformed, and the portion near the knob 54 of the outer peripheral lower wall 50 is lifted.

When the thin wall portion 48c of the outer peripheral lower wall 50 is deformed and the portion of the outer peripheral lower wall 50 in the vicinity of the knob 54 is lifted, the bulging ring 51 in the vicinity of the knob 54 moves outward and upward, and the lid locking portion 7 The locking with the locking protrusion 20 is released.
Further, when the upper lid Bb rotates around the hinge C and the knob piece 54 side is lifted, the fitting between the inner periphery of the outer peripheral lower wall 50 and the outer periphery of the lid engaging portion 7 is released from the knob piece 54 side, and the upper lid Ba Is opened.

  The hinge cap of the present embodiment is provided with a thin wall portion 48c on the outer peripheral lower wall 50 of the upper lid Bb, so that the inner periphery of the outer peripheral lower wall 50 and the outer periphery of the lid engaging portion 7 of the cap base Aa are firmly fitted. Even when the lid is opened, the thin wall portion 48c in the vicinity of the knob 54 is first deformed, and the bulging ring 51 on the inner periphery of the outer peripheral lower wall 50 and the locking protrusion of the lid locking portion 7 from that portion. Since the engagement with the cover 20 is released, resistance to the upper cover Bb on the side of the knob 54 is lifted, and the knob 54 on the outer peripheral wall 48 of the upper cover Bb is lifted with the hinge C as a fulcrum with a weaker force. Can be opened easily.

Further, in the hinge cap of the present embodiment, an annular convex portion 52 that engages with the inner periphery of the lid locking portion 7 of the cap base Aa is formed inside the lower surface 49 of the inner periphery of the lower outer wall 50 of the upper lid Bb. Since the annular protrusion 52 and the bulging ring 51 are fitted so as to sandwich the lid locking portion 7 of the cap base Aa, not only the upper lid Bb and the cap base Aa can be firmly fitted. Even if a force that crushes the upper lid Ba is applied, it is possible to prevent the lower end portion of the outer peripheral wall 48 from spreading and inadvertently opening the lid.
Other functions and effects are the same as those of the first embodiment.

  The present invention uses the lower end of the outer peripheral wall fitted to the outer periphery of the lid engaging portion of the cap base opposite to the hinge of the outer peripheral wall of the upper lid as the outer peripheral lower wall, and forms a deformable thin wall portion on the outer peripheral lower wall. Thus, when opening the hinge cap, the thin wall portion can be easily deformed, and the engagement between the bulging ring of the outer peripheral lower wall and the lid locking portion can be released from that portion. Even if the cap base and the cap base are firmly fitted, they can be easily opened, and can be widely used as hinge caps for various containers regardless of the shape of the upper lid.

A, Aa Cap base B, Ba, Bb Upper lid C Hinge 1 Container port 2 Fitting protrusion 5 Outer cylinder 6 Upper wall 7 Lid locking part 8 Inner cylinder 9 Outlet cylinder 10 Bulkhead 11 Engaging protrusion 12 Slit groove DESCRIPTION OF SYMBOLS 13 Circumferential thin part 14 Thin wall 15 Outer peripheral recessed part 16 Notch recessed part 17 Longitudinal thin part 18 Connection part 19 Thin connection part 20 Locking protrusion 21 Removal part 22 Weakening part 23 Support | pillar 24 Finger ring 25 Buffer piece 30, 47 Top wall 31, 40, 48 Outer peripheral wall 32 Inner peripheral wall 33, 49 Lower surface 34, 41 Outer peripheral lower wall 34a, 41a, 48c Thin wall part 35 Air vent groove 36, 43, 51 Swelling ring 37, 44, 54 Knob piece 38, 55 Horizontal concave portion 42 Locking concave portion 45 Bottom concave portion 46 Pouring hole 48a Lower end wall portion 48b Upper end wall portion 50 Outer peripheral lower wall 52 Annular convex portion 53 Outer peripheral wall concave portion 56 Sealing plate 56a Sealing engaging portion 6b outer peripheral portion 57 bottom plate 58 weakened connecting piece

Claims (7)

In the hinge cap that is attached to the container mouth and consists of a cap base and an upper lid
The cap base includes an outer cylinder that fits into the container mouth, a ring-shaped upper wall, a lid locking portion that is erected on the upper wall, and a dispensing cylinder that is erected on the inner edge of the upper wall. ,
A locking ridge protrudes from the outer periphery of the lid locking portion,
The upper lid includes a top wall, an outer peripheral wall, and an inner peripheral wall,
At the lower part of the outer peripheral wall, an outer peripheral lower wall is formed in which the inner periphery fits with the outer periphery of the lid locking portion,
A bulging ring is provided on the inner lower part of the outer peripheral lower wall so that the upper part comes into contact with the lower part of the locking protrusion of the lid locking part,
On the opposite side of the hinge on the outer peripheral lower wall, a knob is disposed at the lower end,
A hinge cap characterized in that a thin wall portion is formed below the upper end portion of the bulging ring on the opposite side of the hinge on the outer peripheral lower wall, and is deformable.   2. The hinge cap according to claim 1, wherein the outer periphery of the outer peripheral lower wall has a diameter expanding toward the lower end. A lateral recess is recessed from the upper part of the outer peripheral knob on the opposite side of the outer peripheral lower wall hinge toward the inner peripheral side of the bulging ring,
The hinge cap according to claim 1 or 2, wherein the wall portion between the lateral recess and the bulging ring is thin. A bottom recess having a height lower than the top surface of the knob is formed from above along the outer periphery in the vicinity of the connecting portion of the outer knob on the opposite side of the hinge on the lower outer wall,
The hinge cap according to claim 2, wherein the wall thickness between the bottom recess and the lower end surface of the outer peripheral lower wall is thin. A slit groove cut into a predetermined depth on the outer cylinder of the cap base, extending from the vicinity of one side of the connecting portion of the hinge to the center side of the hinge on the upper surface and extending over an arc range of a predetermined circumferential angle. Is formed in a thin wall that can be broken between the inner periphery of the outer cylinder,
Near the hinge end of the slit groove of the outer cylinder, an outer peripheral recess is formed from the outer periphery, and the space between the outermost recess of the outer peripheral recess and the inner periphery of the outer cylinder is formed to be thin and capable of breaking in the vertical direction. ,
The hinge cap according to any one of claims 1 to 4, wherein a space between the outer peripheral concave portion of the outer cylinder and the slit groove end portion is formed to be thin in a longitudinal direction.   The hinge cap according to claim 1, wherein a top wall of the upper lid is flat.   6. The hinge cap according to claim 1, wherein the top wall of the upper lid is dome-shaped.

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