JP2017114533A - Hinge cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hinge cap capable of preventing a sealing member from being deformed or broken even when hinge caps collide each other in a production process, by preventing the sealing member from protruding outward from the hinge cap even if a grip piece of the sealing member is enlarged.SOLUTION: A hinge cap comprises a cap body mounted to a mouth part of a container and a lid body attached to the cap body through a hinge. The cap body comprises a mounted part mounted to the mouth part of the container, and a sealing member connected in a circular shape along an outer peripheral upper end of the mounted part on the opposite side of the hinge. The lid body comprises a top wall, a side peripheral wall suspended from a peripheral edge part of the top wall, a flange part protruding from an outer periphery of the side peripheral wall on the opposite side of the hinge, and a guard part bulging out from the outer periphery of the side peripheral wall on the hinge side. The sealing member has a grip piece extending upward in at least one of both end parts. The grip piece is accommodated in a space between the flange part and the guard part when the container is not opened.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a hinge cap that is attached to the mouth of a container, and more particularly to a hinge cap that includes a sealing member that prevents unauthorized opening.

Conventionally, a cap having a dispensing cylinder for dispensing contents is attached to the mouth of a container. As this type of cap, there is known a hinge cap including a cap body attached to a mouth portion of a container and a lid body that can be opened and closed with the cap body via a hinge.
This type of hinge cap is required to prevent unauthorized opening so that the contents cannot be illegally removed or refilled from the container.
Therefore, the sealing member is connected to the cap body of the hinge cap so that it can be broken, and when the unsealed state, the sealing member is engaged with the projection of the lid body so that the closed state is maintained. 2. Description of the Related Art A hinge cap that can confirm an opened state is conventionally known (see, for example, Patent Document 1).

JP 2012-236651 A

However, since the sealing member of the hinge cap described in Patent Document 1 has small knobs (grips 17) formed at both ends of the sealing member (plate member 16), when the hinge cap is opened, the sealing member There was a problem that it was difficult to pick and remove the tab.
Therefore, it is conceivable to make the picking piece of the sealing member large and easy to peel off. However, when the picking piece of the sealing member is enlarged, the picking piece protrudes outward from the hinge cap, and the hinge cap is boxed in the production process. At the time, when the hinge cap packed in a box is put into a hopper or a chute, there is a problem that the hinge caps collide with each other and the sealing member is deformed or broken.

  An object of the present invention is to solve the above-mentioned problems, and even if the tab of the sealing member is enlarged, the sealing member does not protrude outward from the hinge cap so that the hinge caps can be connected to each other in the production process. It is an object of the present invention to provide a hinge cap that can prevent the sealing member from being deformed or broken even if it collides.

  In order to solve the above-described problems, the present invention provides a hinge cap including a cap body attached to a mouth portion of a container as a hinge cap and a lid attached to the cap body via a hinge. Includes a mounting portion to be mounted on the mouth portion of the container, and a sealing member connected in an arc shape along the outer peripheral upper end opposite to the hinge of the mounting portion, and the lid body includes a top wall and a top wall A side wall suspended from the peripheral edge, a flange projecting on the outer periphery opposite to the hinge of the side wall, and a guard part bulging from the outer periphery of the side wall on the hinge side. At least one of the both ends has a knob extending upward, and the knob is accommodated in a space between the lid portion of the lid and the guard portion when not opened. .

As a specific embodiment of the lid body, the lid body has a collar portion protruding outward from the outer peripheral surface of the sealing member, and the guard portion is substantially flush with the outer peripheral surface of the sealing member. The guard portion has an inclined surface on the side facing the knob piece of the sealing member.
Furthermore, as a specific embodiment of the hinge cap, the lid body has a locking recess provided in the collar portion and a claw portion provided on the side opposite to the hinge on the outer periphery of the side peripheral wall, and the sealing member is provided on the outer periphery of the mounting portion. Adopting a configuration characterized by having a weakened portion connected to the upper end, a notch portion that is locked to the claw portion when not opened, and a locking piece that is held in a locking recess of the collar portion, The sealing member employs a configuration in which a longitudinal notch groove that can be bent is provided at a position adjacent to the knob.

  The hinge cap of the present invention is packed when the hinge cap is boxed in the production process, even if the tab of the sealing member is enlarged, in order to facilitate the pulling of the sealing member by adopting the above configuration. When throwing the hinge cap into the hopper or chute, it is possible to prevent the hinge cap from colliding with each other and the sealing member from being deformed or broken.

The hinge cap of the present invention has a collar portion protruding outward from the outer peripheral surface of the sealing member, and the guard portion is substantially flush with the outer peripheral surface of the sealing member. Even if the collar part and the guard part collide with each other, there is no possibility of being caught by the sealing member and deforming the sealing member.
In addition, the hinge cap of the present invention has a sloped surface on the side of the guard member facing the knob piece of the sealing member, so that the finger can be easily put on the knob piece of the sealing member when the hinge cap is opened. .

It is a figure which shows the closed state of the hinge cap of a present Example, (a) is side sectional drawing, (b) is a side view. It is a figure which shows the open state of the hinge cap of a present Example, (a) is a top view, (b) is a side view. It is explanatory drawing of the hinge cap of a present Example, (a) is a front virtual figure, (b) is a top view at the time of lid closing. It is a figure which shows the cap main body of a present Example, (a) is a principal part enlarged view of Fig.2 (a), (b) is a principal part expanded sectional view of hinge vicinity, (c) is FIG. It is a principal part expanded sectional view in the OX cross section of (a). It is explanatory drawing at the time of lid closing of the hinge cap of a present Example, (a) is the enlarged view which looked at the principal part of FIG.3 (b) from the arrow direction, (b) is the position front of (a). It is a principal part enlarged view. It is a perspective view which shows the external appearance of the hinge cap of a present Example, (a) is before a sealing member fracture | rupture, (b) is after a sealing member fracture | rupture.

Next, the hinge cap of the present invention will be described with reference to the drawings showing examples.
1-3, A is a cap main body attached to the container E, B is a lid attached to the cap main body A through a hinge C so as to be opened and closed, and D is an upper end of the outer edge of the cap main body A opposite to the hinge C. It is the sealing member provided in a row so that it can be cut off.
The container E is a container having a mouth portion 1, and a fitting protrusion 2 is provided on the outer peripheral surface of the mouth portion 1.

The cap body A includes a mounting portion 3 mounted on the mouth portion 1 of the container E, an annular upper wall 4 extending inward from the upper end of the mounting portion 3 and sealing the opening of the mouth portion 1, and the upper wall 4. The pour cylinder 5 is formed so as to be directed upward from the inner edge of the pour pipe, and serves as a pour port. A flow rate adjusting member F is attached to the lower portion of the inner periphery of the pour pipe 5.
The flow rate adjusting member F has a structure in which a valve-like member is formed from the inner wall of the cylindrical member via a plurality (three places) of arm-shaped connecting pieces, and the contents can be discharged from a minute gap between the connecting pieces. Yes.

The mounting portion 3 is provided with a locking protrusion 6 on the outer peripheral upper portion, an annular lid engaging portion 7 that engages with the lid B, and an inner cylinder 8 that is suspended from the inner peripheral edge of the lid engaging portion 7. The outer peripheral wall portion 9 is suspended from the outer peripheral edge of the lid engaging portion 7.
An engaging protrusion 10 that engages with the fitting protrusion 2 of the mouth portion 1 of the container E is provided at the inner peripheral lower portion of the outer peripheral wall portion 9.

In this embodiment, the extraction tube 5 is provided on the opposite side of the hinge C from the center of the upper wall 4, and the lower portion is reduced in diameter at the center of the inner periphery of the extraction tube 5, and the protruding step The spout provided with the portion 5a is formed, and the cross-sectional shape of the protrusion step portion 5a is formed in a stepped shape on the upper side and is curved in a downward direction toward the outside. The flow of the contents is not disturbed, so that it flows smoothly.
Further, the outer wall of the flow rate adjusting member F is formed so as to be fitted to and attached to the lower part of the inner periphery of the extraction tube 5 from the protruding step portion 5a.

As shown in FIGS. 1, 2, and 4, a substantially V-shaped outer peripheral cut portion 11 in a plan view is formed on the outer peripheral surface near the left or right of the hinge C of the outer peripheral wall portion 9. It is cut from above, leaving
At the position corresponding to the outer peripheral notch 11 of the engaging protrusion 10, an inner peripheral notch 13 is carved in the vertical direction.

The outer peripheral cut portion 11 has a hinge-side end surface 11a formed substantially radially on the hinge C side, and a terminal end inclined so as to spread toward the outer periphery on the side opposite to the hinge C slightly separated from the end surface 11a in the circumferential direction. The surface 11b is formed.
Moreover, between the end surface 11a and the termination | terminus surface 11b, the outer peripheral wall part 9 has the width | variety in the circumferential direction slightly, and forms the thin outer peripheral wall 14. In FIG.

  The thin-walled bottom wall 12 serves to reinforce the thin-walled outer peripheral wall 14 so that the thin-walled outer peripheral wall 14 does not break when a large force is applied to the cap, such as when plugging, and the thin-walled outer peripheral wall 14 is torn with a small force. It is made possible to prevent breakage inadvertently.

  As shown in FIGS. 2 (a) and 4, on the hinge C side of the outer peripheral cut portion 11, the slit groove extends in the circumferential direction starting from a position separated from the upper thin portion 15 on the inner peripheral side of the end surface 11a. 16 is recessed from above, and in the present embodiment, it extends over about 305 ° starting from the end face 11a.

  A vertical tear line is formed by the upper thin portion 15 and the lower portion of the thin outer peripheral wall 14 extending from the lower end portion of the upper thin portion 15.

A thin wall connecting the outer peripheral wall portion 9 and the lid engaging portion 7 on the inner peripheral side of the bottom surface 18 of the slit groove 16 with the starting point of the slit groove 16 adjacent to the upper thin portion 15 of the vertical tear line as a tear start point. The connecting portion 19 is provided so that the circumferential tear line extends in an arc shape.
A drain hole 17 is provided at a predetermined position on the bottom surface 18 of the slit groove 16 so as to penetrate downward.
The lower portion of the drain hole 17 communicates with a communication groove 13 a that is vertically recessed in the inner peripheral surface including the engagement protrusion 10 of the outer peripheral wall portion 9, and opens at the lower end of the outer peripheral wall portion 9. .
In this embodiment, five drain holes 17 are provided in the range of the connecting portion 19, but the number and arrangement thereof can be determined as appropriate.

As shown in FIGS. 1 to 3, the sealing member D has an outer diameter slightly smaller than or equal to the outer diameter of the outer peripheral wall portion 9 on the upper end of the outer peripheral wall portion 9 and is opposite to the hinge C. It is formed in a horizontally long arc shape extending from the center part to both sides along the outer periphery, and includes a belt-like part 20 at the center part and knobs 21 formed at both ends thereof.
The knob 21 is provided so as to extend upward from the side of the collar part 34 provided on the lid B, which will be described later, and is thereby easily picked with a finger.

Three locking pieces 22 extending upward are disposed on the upper surface of the band-shaped portion 20, and two lower portions of the band-shaped portion 20 are provided on both sides in order to lock a claw portion 35 provided on a lid B described later. The notch 23 is cut out from the lower end.
The sealing member D has an outer periphery through a breakable central weakened portion 24 disposed in the center between both cutout portions 23 and two weakened portions 25 disposed on both sides of the cutout portion 23. It is connected to the outer peripheral upper end of the wall portion 9.

Further, the sealing member D is provided with a bendable vertical notch groove 26 recessed from the inside at a position adjacent to the knob 21 of the band-shaped portion 20.
In the present embodiment, the knobs 21 are provided on both sides of the belt-like portion 20, but only one of them may be used. In this case, only one of the notch 23 and the both ends weakened portion 25 may be provided.

As shown in FIGS. 1 to 3, the lid B is rotatably attached to the outer peripheral upper end of the outer peripheral wall portion 9 of the cap main body A via the hinge C, and the top wall 30 and the top wall 30 are A cylindrical wall 32 having a diameter larger than that of the extraction cylinder 5 is suspended from a lower surface of the top wall 30 at a predetermined position from the lower wall of the top wall 30. On the inner circumference, a plug G inserted into the inner circumference of the dispensing tube 5 when the lid is closed is mounted so as to be movable up and down.
In addition, as shown to Fig.2 (a), the hinge guard is provided in both the outer peripheral wall part 9 of the cap main body A and the side peripheral wall 31 of the cover body B at the both right and left sides of the hinge C, and it holds a container by hand. When touching, the finger or the like does not touch the hinge C.
Further, the lower end portion 32a of the cylindrical wall 32 is set so as to be close to or in contact with the upper surface of the upper wall 4 of the cap body A. The cylindrical wall 32 is dimensioned so that the plug G can be moved up and down. Is not necessarily extended until it reaches the upper surface of the upper wall 4.

The side peripheral wall 31 has a basic outer diameter smaller than the outer diameter of the outer peripheral wall portion 9 of the cap body A, and is formed with a diameter equal to or smaller than the inner diameter of the sealing member D.
On the lower side of the hinge C on the outer periphery of the side peripheral wall 31, a guard portion 33 is provided on both sides along the outer periphery of the outer peripheral wall portion 9 from the central portion of the hinge C. A hinge C is connected to the lower end.
Both end portions of the guard portion 33 are formed on inclined surfaces 33a that gently inwardly incline.

  On the opposite side of the side peripheral wall 31 from the hinge C, a flange portion 34 is provided in the middle of the outer periphery so as to project in an arc shape having a larger diameter than the outer periphery of the outer peripheral wall portion 9.

The lower part of the outer circumferential surface of the side peripheral wall 31 is a lower engagement surface 31a that engages with the inner surface of the band-shaped portion 20 of the sealing member D when the lid is closed, and the inclined surface of the guard portion 33 adjacent from both sides of the flange portion 34. Between 33a, it is the side engaging surface 31b of the both sides engaged with the inner surface of each knob | pick piece 21 of the sealing member D. As shown in FIG.
Further, at the lower end of the lower engagement surface 31a, two claw portions 35 are provided so as to be fitted to the two notches 23 of the sealing member D when the lid is closed.

The hook 34 is provided with a finger hooking portion 36 at the center of the outer periphery, and a plurality of locking recesses 34a recessed at the lower end surface.
The locking recess 34a is located at a position corresponding to the locking piece 22 of the sealing member D. In this embodiment, there are three locking pieces 22 and three locking recesses 34a are also formed.
Note that the number of the locking pieces 22 and the locking recesses 34 a is not limited to three, and may be two, and can be changed as appropriate according to the size of the flange 34.

  On the inner periphery of the lower end portion of the side peripheral wall 31, the convex portion 37 that engages with the inner peripheral side of the lid engaging portion 7 of the cap main body A and the locking protrusion 6 on the outer peripheral side of the lid engaging portion 7 are engaged. An engaging recess 38 is formed.

  As shown in FIGS. 1A, 3B, and 5, when the sealing member D closes the lid B, the band-like portion 20 of the sealing member D is engaged with the outer surface of the lower engagement surface 31a of the side peripheral wall 31. The engaging pieces 22 are accommodated in the engaging recesses 34a, and the tabs 21 on both sides of the sealing member D are accommodated on the side engaging surfaces 31b on both sides of the collar 34, and the collar 34 It has the structure extended upwards from the side.

In the present embodiment, as shown in FIG. 5, the gap α between the side end surface of the collar portion 34 and the end surface of the adjacent knob 21 and the inclination of the guard portion 33 adjacent to the end surface on the opposite side of the knob 21. A gap β is formed between the surface 33a.
By setting the gap β to be larger than the gap α, it is possible to make it easier to put a finger on the end of the knob 21 together with the inclined surface 33 a of the guard portion 33.
Further, by forming the end of the tab 21 on the gap β side so as to be slightly outward with a width that does not exceed the outer diameter of the outer peripheral wall portion 9, it is possible to make it easier to hook the finger.
Since the sealing member D is accommodated in the space between the outer peripheral wall portion 9 of the cap body A and the lower portion of the flange portion 34 of the lid B and the side end portion of the guard portion 33, the outer peripheral wall portion 9 and the guard portion 33, which is inward or flush with the outer surface of the flange 34, and is formed so as not to protrude outward.

Next, usage modes and operational effects of this embodiment will be described.
In the hinge cap of this embodiment, the plug body G is assembled to the cylindrical wall 32 of the lid B so that the hinge cap can be moved up and down before the first lid closing process. The flow rate adjusting member F is fitted and attached to the lower inner periphery of the outlet cylinder 5.

Next, when the lid is closed from the open state shown in FIG. 2 as shown in FIG. 1, if the lid B is rotated around the hinge C, it projects from the lower engagement surface 31a of the lid B. The inclined surfaces of the two claw portions 35 are in contact with the back surface of the band-like portion 20 of the sealing member D of the cap body A, and the claw portion 35 is slightly deformed while the claw portion 35 is slightly deformed. I will insert it towards
Finally, the claw portion 35 is locked to the cutout portion 23 of the belt-like portion 20 so that the deformation of the belt-like portion 20 is released, and the collar portion 34 of the lid B comes into contact with the upper portion of the belt-like portion 20 to engage the belt-like portion 20. The stop piece 22 is fitted into the locking recess 34 a of the flange 34.
Further, the locking protrusion 6 of the lid engaging portion 7 of the cap body A and the engaging recess 38 of the lid B are engaged, and the lid is closed as an unopened state.

  The hinge cap according to the present embodiment has a relationship between the lid engaging portion 7 and the lid B of the cap body A before the hinge cap is attached to the container E or in an unopened state after the hinge cap is attached to the container E. In addition to the engagement of the joint recess 38, the claw portion 35 of the lid B is engaged with the upper surface of the notch 23 of the sealing member D, so that the closed state can be maintained more firmly.

  In the unopened state, in order to forcefully open the lid from the unopened state, even if trying to deform the sealing member D in order to disengage the claw portion 35 of the lid B and the cutout portion 23 of the sealing member D, In the sealing member D, not only the lower end is connected to the central weakened portion 24 and the both end weakened portions 25, but the locking piece 22 formed at the upper end of the band-shaped portion 20 is inserted into the locking recess 34a of the lid B. Therefore, unless the weakened portion of the sealing member D is broken, the engagement between the claw portion 35 of the lid B and the cutout portion 23 of the sealing member D cannot be released, and unauthorized opening is prevented. Can do.

In this embodiment, the sealing member D is accommodated in a space between the outer peripheral wall portion 9 of the cap body A and the lower portion, side end portion, and side end portion of the guard portion 33 of the lid portion B of the lid body B. Since it is inward or flush with the outer surface of the outer peripheral wall portion 9 and the guard portion 33 and the flange portion 34, for example, even when the hinge cap is packed in a box, it may come into contact with other hinge caps or be damaged or caught. In addition, there is no possibility that the central weakened portion 24, the both ends weakened portion 25, and the like are broken.
A gap α is formed between the collar portion 34 and the adjacent knob 21 and a gap β is formed between the knob 21 and the inclined surface 33a of the guard portion 33 adjacent to each other. Therefore, even when the hinge cap is packed in the box, a part of the other hinge cap or the like enters both the gaps α and β and does not get caught by the sealing member D.
Further, in order to make it easy to put the finger on the knob piece 21, even if the gap β between the knob piece 21 and the inclined surface 33a of the adjacent guard portion 33 is set to a certain extent, the outer surface of the guard portion 33 in the vicinity of the portion. Guards against the outer surface of the knob 21 so that part of the other hinge cap or the like is not caught by the sealing member D.

Next, as shown in FIG. 1, the closed hinge cap is plugged into the mouth portion 1 of the container E filled with the contents and attached.
In the plugging process, the mouth portion 1 of the container E is applied to the annular groove formed between the inner cylinder 8 and the outer peripheral wall portion 9 of the mounting portion 3, and a pressing force is applied from above the lid B, The engaging protrusion 10 of the wall 9 is fitted over the fitting protrusion 2 of the mouth 1, and the mouth 1 of the container E is the outer periphery of the inner cylinder 8, the inner periphery of the outer peripheral wall 9, and the lid member. It is mounted by being sandwiched between the joint portions 7.

When the hinge cap is first opened in order to use the contents in the band-shaped portion of this embodiment, as shown in FIG. 6, the left or right knob 21 of the sealing member D of the cap body A Hook your finger on the guard 33 side and pull it to the opposite side of the hinge C.
In the present embodiment, the knob 21 extends upward from the collar 34, and thus has a structure that is easy to pick.
In addition, the finger can easily enter the gap β together with the inclined surface 33 a of the guard portion 33, so that it is easy to put the finger on the end of the knob 21.

By pulling the left or right side of the knob 21 of the sealing member D, the both ends weakened portion 25 on that side starts to be broken from either the left or right direction.
At the same time, in this embodiment, since the notched groove 26 is easily bent between the knob piece 21 and the adjacent band-like portion 20, the knob piece 21 is bent and the both ends weakened portion 25 and the central weakened portion 24 are broken. Becomes easy.
Finally, as shown in FIG. 6B, after the central weakened portion 24 is also broken, the locking piece 22 of the band-shaped portion 20 of the sealing member D is removed from the locking recess 34a of the flange portion 34 of the lid B. The sealing member D can be completely separated from the cap body A.

The sealing member D erected on the cap body A of the present embodiment has the engaging piece 22 erected at the center so as to enter and be retained in the engaging recess 34a of the collar part 34 of the lid B. Thus, the sealing member D is firmly maintained by holding the locking piece 22 at the upper end as compared with the case where only the lower end is continuously provided by the center weakening portion 24 and the both ends weakening portion 25, as shown in FIG. The lid cannot be opened unless the central weakened portion 24 and the both ends weakened portion 25 are broken and the sealing member D is removed.
Further, when the lid is opened from the unopened state, the lid is not opened unless the central weakened portion 24 and the both ends weakened portion 25 are broken from the outer peripheral wall portion 9 of the cap body A. Can be easily visually confirmed, and it can be easily confirmed from the appearance that it has been tampered with.

Next, after removing the sealing member D, the finger hooking portion 36 of the collar portion 34 of the lid B is lifted, and the lid G together with the stopper G is removed from the dispensing cylinder 5 of the cap body A. For example, the contents in the belt-shaped portion can be easily rectified and poured out from the dispensing cylinder 5 by the flow rate adjusting member F simply by tilting the belt-shaped portion.
After closing, the closed state is maintained only by the engagement of the locking protrusion 6 of the lid engaging portion 7 of the cap body A and the engaging recess 38 of the lid B, and the lid can be easily opened. can do.

By closing the lid body B again on the cap body A, the lower outer periphery of the plug body G held by the cylindrical wall 32 of the lid body B is engaged with the inner periphery of the dispensing cylinder 5 of the cap body A, and the cap The inside of the main body A can be sealed, and the contents can be used by repeatedly opening and closing the lid B even after the hinge cap is opened.
In the closed state, the outer periphery of the plug body G is fitted into the inner periphery of the pouring cylinder 5, so that the plug body G is integrated with the pouring cylinder 5 of the cap main body A. Even when an external force is applied to the lid B due to an impact such as dropping, and the lid B is displaced in the vertical or horizontal direction, the plug G has an inner periphery of the cylindrical wall 32 and the inner surface of the top wall 30. By forming the side gap and the upper and lower gaps respectively, the influence on the movement of the lid B is mitigated, and the airtightness of the container E can be maintained.

The hinge cap according to the present embodiment can be disposed of and discarded from the mouth 1 of the container E after all the contents in the container E are used.
In that case, when the hinge cap is opened, the lid B is gripped with a finger and pulled outward, the connected portion with the hinge C of the outer peripheral wall portion 9 is pulled and deformed, and the upper thin portion 15 is deformed. Is torn from above and is broken to the position of the bottom surface 18 of the slit groove 16 shown in FIGS.

When the lid B is further pulled, the tear of the upper thin portion 15 moves to the thin outer peripheral wall 14, tearing the lower portion of the thin outer peripheral wall 14 in the vertical direction, and the connecting portion 19 forming the circumferential tear line breaks. Begin.
Since the connecting portion 19 is extremely thin or cut, when the longitudinal tear line is torn and the circumferential tear line begins to tear, the force to tear both tear lines at the same time does not increase, and from the longitudinal tear line Breakage can be smoothly advanced to the circumferential tear line.

  The lower part of the thin outer peripheral wall 14 is torn, and then the thin bottom wall 12 is completely torn to complete the breaking of the vertical tear line, and when the breaking of the connecting portion 19 proceeds, the lid B is moved to the cap main body A. When the lid B is further pulled and the lid B is further pulled, the fitting between the cap body A and the mouth portion 1 of the belt-like portion is released, and the hinge cap and the container E can be separated and discarded.

  The hinge cap of the present invention can easily check the unopened state by the presence or absence of the sealing member, and can prevent the sealing member from being deformed or broken even if the hinge caps collide with each other in the production process or the like. Can be widely used as a hinge cap that has a simple structure and can reduce costs, and is particularly suitable for use as a cap for beverages, foods, and other containers that are highly required to ensure safety. .

A Cap body B Cover C Hinge D Sealing member E Container F Flow rate adjusting member G Plug body 1 Mouth part 2 Fitting protrusion 3 Mounting part 4 Upper wall 5 Extraction tube 5a Projection step part 6 Locking protrusion 7 Lid Engaging portion 8 Inner tube 9 Outer peripheral wall portion 10 Engaging protrusion 11 Outer peripheral cut portion 11a End surface 11b End surface 12 Thin wall 13 Inner peripheral cut portion 13a Communication groove 14 Thin outer peripheral wall 15 Upper thin portion 16 Slit groove 17 Drain Hole 18 Bottom surface 19 Connecting portion 20 Band-shaped portion 21 Knob piece 22 Locking piece 23 Notch portion 24 Center weakening portion 25 Both ends weakening portion 26 Notch groove 30 Top wall 31 Side peripheral wall 31a Lower engagement surface 31b Side engagement surface 32 Cylindrical wall 32a Lower end part 33 Guard part 33a Inclined surface 34 Gutter part 34a Locking recess 35 Claw part 36 Finger hook part 37 Projection part 38 Engagement recess part

Claims (5)

A hinge cap comprising a cap body attached to the mouth of the container and a lid attached to the cap body via a hinge,
The cap body includes a mounting portion that is mounted on the mouth portion of the container, and a sealing member that is connected in an arc shape along the outer peripheral upper end opposite to the hinge of the mounting portion.
The lid body bulges from the top wall, the side wall suspended from the peripheral edge of the top wall, the flange projecting from the outer periphery of the side wall opposite to the hinge, and the hinge of the side wall. With a guard part,
The sealing member has a knob extending upward in at least one of both ends,
A hinge cap characterized in that the knob piece is accommodated in a space between the collar portion of the lid and the guard portion when not opened.   2. The hinge cap according to claim 1, wherein the lid portion has a flange portion protruding outward from the outer peripheral surface of the sealing member, and the guard portion is substantially flush with the outer peripheral surface of the sealing member.   The hinge cap according to claim 1 or 2, wherein the guard portion has an inclined surface on a side facing the knob piece of the sealing member. The lid body has a locking recess provided in the collar portion and a claw portion provided on the side opposite to the hinge on the outer periphery of the side peripheral wall,
The sealing member has a weakened portion connected to the upper end of the outer periphery of the mounting portion, a notch portion that is locked to the claw portion when not opened, and a locking piece that is held in the locking recess of the collar portion. The hinge cap according to any one of claims 1 to 3.   The hinge cap according to any one of claims 1 to 4, wherein the sealing member is provided with a bendable longitudinal cutout groove at a position adjacent to the knob.

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