JP2019151402A - Hinge cap - Google Patents

Abstract

To provide a hinge cap capable of securing an air passage for airtightness inspection and suppressing shower water penetration into a cap.SOLUTION: The hinge cap consists of a cap body attached to a mouth of a container and an upper lid connected to the cap body via a hinge, in which the cap body includes a mounting portion attached to the mouth of the container and having a lid engaging portion that engages with the upper lid, a base wall extended inward from the mounting portion and having a spout opened, and a spouting tube erected from the base wall, the upper lid includes a top wall, a side peripheral wall suspended from a peripheral edge of the top wall, and a sealing tube suspended from an inner surface of the top wall to seal a spouting tube of the cap body, and the cap body has a notch portion formed by a part of the lid engaging portion on the hinge side being notched, and an inner wall erected inside the notch portion from an upper surface of the base wall, so that the air passage is formed between the notch portion and the inner wall when the lid is closed.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a hinge cap attached to a mouth of a container, and more particularly to a hinge cap that suppresses intrusion of shower water.

  2. Description of the Related Art Conventionally, in a hinge cap in which an upper lid that closes an opening of a cap body via a hinge portion is connected to a cap body that is attached to a mouth portion of a container, a nozzle-like dispensing portion provided on the cap body is provided. A hinge cap that is hermetically sealed with a sealing member that is suspended from the lower surface of the upper lid is well known (see, for example, Patent Document 1).

  In the hinge cap having the sealing member and the nozzle-like extraction portion as described above, the lid is closed after molding, and the sealing inspection is performed to confirm whether the seal portion between the sealing member and the extraction portion is sealed. (Leak inspection) has been performed, and in that case, it is necessary to provide a gap serving as an air passage in the outer airtight portion between the upper lid and the cap body. Shower water for cleaning the cap from the gap However, there was a problem that it would enter the cap.

Japanese Patent Publication No. 3-53182

  An object of the present invention is to provide a hinge cap capable of solving the above-described problems, ensuring an air passage for a sealing inspection, and suppressing intrusion of shower water into the cap. To do.

  In order to solve the above-mentioned problems, the present invention provides a hinge cap comprising a cap main body mounted on a mouth of a container as an hinge cap, and an upper lid connected to the cap main body via a hinge. The main body is attached to the mouth portion of the container and has a mounting portion having a lid engaging portion that engages with the upper lid, a base wall that extends inward from the mounting portion and has an opening for spout, and stands from the base wall. A top cover, a side wall suspended from the peripheral edge of the top wall, a seal suspended from the inner surface of the top wall, and sealing the dispensing cylinder of the cap body The cap body has a notch formed by notching a part of the lid-side lid engaging portion, and an inner wall erected from the upper surface of the base wall inside the notch, and is closed. A configuration is adopted in which an air passage is formed between the notch and the inner wall at the time of the lid.

  As a specific embodiment of the hinge cap, the notch is within the range of the hinge, and the height of the inner wall is equal to or higher than the height of the lid engaging portion, and the notch Adopts a configuration characterized in that it is formed avoiding the central portion of the hinge.

  As a further specific embodiment of the hinge cap, the length of the inner wall is made longer than the length of the notch, and the air passage is formed by overlapping the end of the inner wall and the end of the lid engaging portion. The inner wall has a structure in which the lid engaging part is pulled inward from both ends of the notch part, and a missing part is formed in the middle, and the lower end part of the upper lid side peripheral wall on the hinge side A configuration is adopted in which two notches are formed on the left and right within the range of the hinge.

  The hinge cap of the present invention adopts the above-described configuration, so that the sealing inspection (leakage) of the seal portion between the sealing tube and the dispensing tube is performed in the closed state where the dispensing tube of the cap body is sealed by the sealing tube of the upper lid. An air passage for inspection) is secured, and the penetration of the shower water into the cap can be suppressed.

It is side surface sectional drawing which shows the state which mounted | wore the container with the hinge cap of 1st Example of this invention. It is explanatory drawing which shows the cover state of the hinge cap of 1st Example of this invention, (a) is a top view, (b) is side sectional drawing. It is a perspective view of the cap main body of the hinge cap of 1st Example of this invention. It is explanatory drawing which shows the cover open state of the hinge cap of 2nd Example of this invention, (a) is a top view, (b) is side sectional drawing. It is explanatory drawing which shows the cover open state of the hinge cap of 3rd Example of this invention, (a) is a top view, (b) is side sectional drawing. It is explanatory drawing which shows the state which mounted | wore the container with the hinge cap of the modified example of this invention, (a) is side sectional drawing of a closed state, (b) is side sectional drawing of an open state.

  The hinge cap of the present invention will be described with reference to the drawings showing an embodiment of a embodied hinge cap having a flow rate adjusting mechanism.

1 to 3, A is a container, B is a cap body mounted on the container A, C is a hinge, and D is an upper lid that is attached to the cap body B via the hinge C so as to be opened and closed.
The container A has a mouth portion 1 at the top, and a fitting protrusion 2 is provided on the outer peripheral surface of the mouth portion 1.

  As shown in FIGS. 1 to 3, the cap main body B extends inwardly from the upper end of the inner edge of the mounting portion 3 and the mounting portion 3 to be mounted on the mouth portion 1 of the container A. A base wall 4 to be sealed, a pouring cylinder 5 standing from the periphery of the pouring outlet penetrating the base wall 4, and a flow rate adjusting mechanism E connected to the lower end portion 5 a of the pouring cylinder 5 are provided. .

The base wall 4 includes a wall portion 4a extending from the inner peripheral upper end of the mounting portion 3 and an inclined portion 4b extending inclined inward from the inner end of the wall portion 4a. A pouring tube 5 is continuously provided at the end.
The inner circumference of the dispensing cylinder 5 is reduced in diameter at the lower portion and provided with a stepped portion 5b. The stepped portion 5b has a cross-sectional shape formed on an inclined surface having a gentle downward slope toward the inside.
Moreover, in order to make it easy to pour the content liquid, in the present embodiment, the side opposite to the hinge C (pouring side) is formed higher than the hinge C side, and the lip portion 5c has a trumpet shape. Has spread.
In this embodiment, the dispensing cylinder 5 is provided at a position slightly shifted to the opposite side of the hinge C, but it may be at the center position.

The mounting portion 3 includes an annular lid engaging portion 7 that is provided with a locking protrusion 6 on the periphery and engages the upper lid D, an inner cylinder 8 that is suspended from the inner periphery of the lid engaging portion 7, It is comprised from the outer peripheral wall part 9 suspended from the outer periphery of the joint part 7. FIG.
The outer peripheral wall portion 9 is provided with an engaging protrusion 10 that engages with the fitting protrusion 2 of the mouth portion 1 of the container A at the lower portion of the inner periphery.
Moreover, the 1st protrusion 19 is protrudingly provided by the upper end part of the outer peripheral wall part 9 outside the hinge C on the left and right, and the 1st protrusion 19 is a position facing the 2nd protrusions 38 on either side of the upper cover D mentioned later. Is provided.

In this embodiment, as shown in FIG. 3, a notch 11 is formed by notching a part of the lid engaging portion 7 on the hinge C side, and an inner wall 12 is a base wall inside the notch 11. The air passage a is formed between the notch 11 and the inner wall 12 when the lid is closed.
When the notch 11 exceeds the range of the hinge C, shower water can easily enter the air passage a. Therefore, the notch 11 is preferably within the range of the hinge C.
The inner wall 12 is formed with a height equal to or slightly higher than the height of the lid engaging portion 7, and the length is made slightly longer than the notch portion 11, so that the end of the inner wall 12 and the end of the lid engaging portion 7 are formed. By overlapping and forming the air passage a, the intrusion of shower water can be further suppressed.
Further, in this embodiment, each of the notch portion 11 and the inner wall 12 is one place, but as shown in the second embodiment, only the notch portion 11 may be a plurality of places with respect to one place of the inner wall 12. The same number of inner walls 12 may be provided in accordance with the number of notches 11.

As shown in FIG. 2, a substantially V-shaped outer peripheral notch 13 in a plan view is formed on the outer peripheral surface in the vicinity of either the left or right of the hinge C of the outer peripheral wall 9, leaving a thin bottom wall 14 at the lower end. Has been cut from.
Although not shown in the figure, the inner peripheral cut portion is cut in the vertical direction at a position corresponding to the outer peripheral cut portion 13 of the engagement protrusion 10 to form a vertical tear line.

On the hinge C side of the outer circumferential cut portion 13, a slit groove 15 is recessed from above so as to extend in the circumferential direction starting from a position separated from the thin portion on the inner circumferential side of the end surface 13a. The end connecting portion 18 is provided with the outer peripheral wall portion 9 and the lid engaging portion 7 integrally connected to each other, extending about 350 ° starting from the end face 13a and having no slit groove 15 at the end.
Further, as a starting point tear the origin of slit grooves 15 adjacent in the vertical direction tear lines, on the inner peripheral side of the bottom surface 16 of the slit groove 15, the thin connection of the connecting between the outer peripheral wall portion 9 and the Futagakarigo section 7 A portion 17 is provided, and the circumferential tear line is formed to extend in an arc shape.

As shown in FIGS. 1 and 2B, the flow rate adjusting mechanism E includes a peripheral wall 20 that is suspended inwardly from the lower end portion 5 a of the dispensing tube 5, and an inner side of the lower end portion of the peripheral wall 20. And a bottom wall 21 extending from the bottom.
The peripheral wall 20 is provided with a plurality of peripheral wall openings 22 formed in a slit shape in the vertical direction at intervals.

As shown in FIGS. 1 and 2, the upper lid D is rotatably attached to the outer peripheral upper end of the outer peripheral wall portion 9 of the cap main body B via a hinge C. And a side peripheral wall 31 suspended from the peripheral edge.
The top wall 30 is provided with a seal cylinder 32 that is inserted from the inner surface into the inner peripheral surface of the extraction cylinder 5 to be sealed when the lid is closed, and the lower outer periphery of the seal cylinder 32 is poured when the lid is closed. A seal portion b between the seal cylinder 32 and the extraction cylinder 5 is formed in close contact with the inner periphery of the extraction cylinder 5.

The lower end portion of the side peripheral wall 31 is provided on the inner peripheral side with a locking projection 34 that engages with the inner peripheral side of the lid engaging portion 7 of the cap body B, and at the center portion of the lid engaging portion 7. An engaging recess 35 that engages with the locking protrusion 6 and maintains the closed state is provided. The lid engaging portion 7 is wrapped and fitted by the locking convex portion 34 and the engaging concave portion 35, and the sealing property between the upper lid D and the cap body B is improved.
On the outer periphery of the side peripheral wall 31 opposite to the hinge C, an arc-shaped handle portion 36 extends in the circumferential direction, and the side peripheral wall 31 with the handle portion 36 is thin, and is near the lower end of the side peripheral wall 31. A recess 36a is formed on the surface.

Two notches 37 are formed on the left and right sides within the range of the hinge C at the lower end portion of the side peripheral wall 31 of the upper lid D on the hinge C side, and left and right sides are formed on the lower end portion of the side peripheral wall 31 outside the hinge C. The 2nd protrusion 38 is protrudingly provided.
When the cover is closed, the left and right cutouts 37 communicate with the cutout portion 11 of the cap body B and further communicate with the outside through a gap of the hinge C and the like.
Further, the second protrusion 38 of the upper lid D is located at a position facing the first protrusion 19 of the cap body B. When the lid is closed, the first protrusion 19 and the second protrusion 38 are joined together, and the hinge C In addition to suppressing the intrusion of shower water into the gaps, etc., when touching the hinge C with a finger, there is no pain.

  Although the hinge cap of the present embodiment is not shown in order to prevent unauthorized opening before use, a shrink label, a sealing member, or the like is provided between the cap body B and the upper lid D.

Next, usage modes and operational effects of this embodiment will be described.
In the hinge cap of the present embodiment, first, from the state shown in FIG. 2, the upper lid D is rotated via the hinge C to cover the cap main body B, and the lid is closed.
At that time, the lower outer periphery of the seal cylinder 32 of the upper lid D is in close contact with the inner periphery of the extraction cylinder 5 of the cap body B, and a seal portion b between the seal cylinder 32 and the extraction cylinder 5 is formed. The part 34 and the engaging recess 35 are engaged with the lid engaging part 7 of the cap body B except for the notch part 11, and an air passage a is formed between the notch part 11 and the inner wall 12.

When the sealing inspection (leakage inspection) of the sealing portion b between the sealing cylinder 32 and the dispensing cylinder 5 is performed in the closed state, an air passage a is formed between the notch portion 11 and the inner wall 12. Therefore, the sealing inspection can be easily performed.
The sealing inspection may be performed by sending air (gas) from below the cap body B and checking whether air (gas) is leaking into the cap, or by vacuuming the air (gas) from below the cap body B. Good.
In addition, when the closed hinge cap is washed with shower water, the first protrusion 19 and the second protrusion 38 prevent the shower water from entering the gap of the hinge C and the like. Since the inner wall 12 is provided inside the portion 11, the intrusion of shower water into the cap is suppressed.

Next, as shown in FIG. 1, the closed hinge cap is plugged into the mouth 1 of the container A filled with the content liquid.
In the plugging process, the mouth portion 1 of the container A 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 upper lid D, The engaging protrusion 10 of the portion 9 is fitted over the fitting protrusion 2 of the mouth portion 1, and the mouth portion 1 of the container A is engaged with the outer periphery of the inner cylinder 8, the inner periphery of the outer peripheral wall portion 9, and the lid engagement. It is mounted by being pinched by the part 7.

  Similarly, when the hinge cap and the container A are cleaned with the shower water after the plugging step, the penetration of the shower water into the cap is similarly suppressed.

  In this embodiment, the mounting portion 3 holds the mouth portion 1 of the container A by the outer periphery of the inner cylinder 8, the inner periphery of the outer peripheral wall portion 9, and the base wall 4. A screw may be formed by forming a male screw on the outer periphery of the mouth portion 1 and forming a female screw on the inner periphery of the outer peripheral wall portion 9.

  In order to use the liquid in the container A for the first time, when opening the hinge cap for the first time, it is necessary to remove the shrink label or sealing member provided between the cap body B and the upper lid D, although not shown. There is.

  Next, when the handle portion 36 of the upper lid D is lifted, the concave portion 36a is formed in the vicinity of the lower end portion of the side peripheral wall 31 opposite to the hinge C, so that the engaging concave portion 35 is deformed and the lid engaging portion 7 is deformed. The upper lid D is easily opened, the sealing cylinder 32 of the upper lid D is removed from the dispensing cylinder 5 of the cap body B, and the container A is tilted easily. The content liquid in the container A can be poured out from the dispensing cylinder 5.

In this embodiment, since the flow rate adjusting mechanism E is provided at the lower end portion 5a of the dispensing cylinder 5 of the cap body B, the content liquid in the container A is dispensed from the dispensing cylinder 5 with the flow rate adjusted. .
Note that the flow rate adjusting mechanism E is not necessarily provided.

  When the dispensing of the content liquid is finished, the content liquid in the dispensing cylinder 5 is returned from the stepped portion 5b into the container A through the slit-like peripheral wall opening 22 of the flow rate adjusting mechanism E, and the dispensing cylinder 5 and the flow rate adjustment. There is almost no content liquid in mechanism E.

  By closing the upper lid D on the cap body B again, the lower outer periphery of the seal cylinder 32 of the upper lid D is brought into close contact with the inner periphery of the dispensing cylinder 5 of the cap body B, and the seal portion b is formed again. The upper lid D can be repeatedly opened and closed for use.

The hinge cap of the present embodiment can be disposed of after being completely used from the contents liquid in the container A and then discarded from the mouth 1 of the container A.
At that time, when the hinge cap is opened, the upper lid D is gripped with a finger and pulled outward, the connected portion of the outer peripheral wall portion 9 with the hinge C is pulled and deformed, and the vertical tear line is formed. When the upper lid D is further pulled, the connecting portion 17 forming the circumferential tear line starts to break. When the breaking of the connecting portion 17 proceeds, the upper lid D moves away from the cap body B.
When the cutting of the connecting portion 17 is completed to the end portion of the slit groove 15 and the upper lid D is further pulled, the end connecting portion 18 integrally connected to the lid engaging portion 7 and the outer peripheral wall portion 9 is pulled outward, and the cap The fitting between the main body B and the mouth 1 of the container A is removed, and the hinge cap and the container A can be separated and discarded.
Further, when a separation mechanism is provided in the hinge cap, if a slit or a gap is formed in the mounting portion 3 near the hinge C, the slit or the gap may be communicated with the outside as an air passage.

Next, a second embodiment in which the configuration of the cap body B of the first embodiment is changed will be described with reference to FIG.
Hereinafter, the same components as those in the first embodiment will be denoted by the same reference numerals, and the changed portions in the cap main body B will be denoted by new reference numerals, and differences will be mainly described.

  In FIG. 4, A is a container, Ba is a cap main body mounted on the container A, C is a hinge, and D is an upper lid attached to the cap main body Ba via the hinge C so as to be opened and closed.

On the hinge C side of the upper surface of the wall portion 4a of the base wall 4 of the cap main body Ba, an inner wall 12 extending in an arc shape is provided on the inner side of the lid engaging portion 7 so as to extend on both sides at a predetermined distance from the center portion.
In addition, the lid engaging portion 7 on the hinge C side is formed with a notch 40 cut out on both sides within the range of the inner wall 12 so as to avoid the central portion of the hinge C. The hinge-side lid engaging portion 7a having both sides sandwiched between the notch portions 40 is left in the central portion on the hinge C side.
In the present embodiment, when the lid is closed, the cutout portions 40 on both sides become the cutout air passage c, and an air passage d is formed between the inner wall 12 and the lid engaging portion 7 connected to the cutout air passage c.
If the range of formation of both the notches 40 exceeds the range of the hinge C, shower water can easily enter the notch air passage c.

Next, the function and effect of this embodiment will be described.
When the hinge cap of the present embodiment is closed, the locking convex portion 34 and the engaging concave portion 35 of the upper lid D are engaged with the lid engaging portion 7 of the cap body Ba, and the notch portions 40 on both sides are notched. It becomes the air passage c.

When the sealing inspection (leakage inspection) of the sealing portion (not shown) between the sealing cylinder 32 and the dispensing cylinder 5 is performed in the closed state, the notch portion 40 of the lid engaging portion 7 is notched air passage c. In addition, since the air passage d is formed between the inner wall 12 and the lid engaging portion 7 connected to the inner wall 12, the sealing inspection can be easily performed.
Further, when the lid is closed, the locking projection 34 and the engagement recess 35 on the hinge C side of the upper lid D and the hinge side lid engaging portion 7a of the cap body Ba are fitted, so that the closed state is more strongly maintained. can do.
Other functions and effects are the same as those of the first embodiment.

Next, a third embodiment in which the configuration of the cap body B of the first embodiment is changed will be described with reference to FIG.
Hereinafter, the same components as those in the first embodiment will be denoted by the same reference numerals, and the changed portions in the cap main body B will be denoted by new reference numerals, and differences will be mainly described.

  In FIG. 5, A is a container, Bb is a cap body mounted on the container A, C is a hinge, and D is an upper lid attached to the cap body Bb via the hinge C so as to be opened and closed.

The lid engaging portion 7 on the hinge C side of the cap body Bb is formed with a notch 45 cut out on both sides to avoid the central portion of the hinge C. For this reason, the lid engaging portion 7 is located on the hinge C side. The hinge-side lid engaging portion 7a having both sides sandwiched between the notch portions 45 is left in the central portion.
Further, the pair of walls 4 a of the base wall 4 are drawn inwardly of the base wall 4 from the notch end portions 7 b of the lid engaging portions 7 on both ends of the notch portions 45 sandwiching the hinge side lid engaging portion 7 a. A pair of inner walls composed of an inclined inner wall 46a and an arc inner wall 46b extending from each inclined inner wall 46a in an arc shape so as to be parallel to the hinge side lid engaging portion 7a and having a missing portion 47 formed in the middle. 46 is erected.
In the present embodiment, when the lid is closed, the notched portions 45 on both sides become the notched air passage c, and an air passage e is formed between both inner walls 46 and the hinge side lid engaging portion 7a, and the missing portion In 47, an air passage f is formed.
If the range of formation of both the notches 45 exceeds the range of the hinge C, shower water easily enters the notch air passage c.

Next, the function and effect of this embodiment will be described.
When the hinge cap of the present embodiment is closed, the locking convex portion 34 and the engaging concave portion 35 of the upper lid D engage with the lid engaging portion 7 of the cap body Bb, and the notch portions 45 on both sides are notched. It becomes the air passage c.

When a sealing inspection (leakage inspection) of the seal portion b between the seal cylinder 32 and the dispensing cylinder 5 is performed in the closed state, the notch portion 45 of the lid engaging portion 7 becomes the notch air passage c, Since the air passage e and the air passage f connected to the air passage e are formed, the sealing inspection can be easily performed.
Further, when the lid is closed, the locking projection 34 and the engagement recess 35 on the hinge C side of the upper lid D and the hinge side lid engaging portion 7a of the cap body Bb are fitted, so that the closed state is more strongly maintained. can do.
Other functions and effects are the same as those of the first embodiment.

In the first to third embodiments, when the hinge cap is closed, the lower outer periphery of the seal cylinder 32 of the upper cover D is the dispensing cylinder 5 of the cap body B (Ba in the second embodiment, Bb in the third embodiment). The seal portion b between the seal cylinder 32 and the extraction cylinder 5 is formed in close contact with the inner periphery, but as shown in FIG. 6, the extraction cylinder 50 of the cap body Bc has a substantially cylindrical shape extending upward. Yes, on the inner surface of the top wall 51 of the upper lid Dc, an inner peripheral cylinder 52 inserted into the inner peripheral surface of the extraction cylinder 50 when the lid is closed, and on the outer side of the inner peripheral cylinder 52, the inner peripheral lower portion of the extraction cylinder 50 An outer peripheral cylinder 53 that is fitted to the upper periphery of the outer periphery to be in a sealed state is suspended, and when the lid is closed, the inner periphery of the outer peripheral cylinder 53 and the outer periphery of the extraction cylinder 50 are in close contact with each other. The seal part g may be formed.
As long as the inside of the extraction cylinder of the cap body can be sealed and the inside of the container can be sealed, the arrangement of the extraction cylinder and the seal cylinder may be any configuration.
Moreover, in the hinge cap of this invention, the inner walls 12 and 46 should just be provided in the inner position of the lid engaging part 7 by which a part was notched by the hinge C side, and a structure is not limited.

  The hinge cap of the present invention is an air passage for leak inspection that inspects the sealing state of the seal portion between the sealing cylinder and the dispensing cylinder in a closed state where the dispensing cylinder of the cap body is sealed by the sealing cylinder of the upper lid. Is ensured, and the penetration of the shower water into the cap can be suppressed.

A Container B, Ba, Bb, Bc Cap body C Hinge D, Dc Upper lid E Flow rate adjusting mechanism a, d, e, f Air passage b, g Seal portion c Notched air passage 1 Port portion 2 Fitting protrusion 3 Mounting portion 4 base wall 4a wall portion 4b inclined portion 5, 50 pouring tube 5a lower end portion 5b step portion 5c lip portion 6 locking protrusion 7 lid engaging portion 7a hinge side lid engaging portion 7b notch end portion 8 inner tube 9 Outer peripheral wall 10 Engaging protrusion 11, 40, 45 Notch 12, 46 Inner wall 13 Outer peripheral cut 13a End face 14 Thin bottom wall 15 Slit groove 16 Bottom face 17 Connecting part 18 End connecting part 19 First protruding part 20 Peripheral wall 21 Bottom Wall 22 Peripheral wall opening 30, 51 Top wall 31 Side peripheral wall 32 Seal cylinder 34 Locking convex part 35 Engaging concave part 36 Handle part 36a Concave part 37 Notch 38 Second protrusion 46a Inclined inner wall 46b Arc inner wall 47 Missing part 52 Inner circumference Tube 53 outer circumference

Claims (6)

A hinge cap comprising a cap body attached to the mouth of the container, and an upper lid connected to the cap body via a hinge,
The cap body is attached to the mouth portion of the container and has a mounting portion having a lid engaging portion that engages with the upper lid, a base wall that extends inwardly from the mounting portion and has an opening for spout, and a base wall With a standing pipe
The upper lid includes a top wall, a side peripheral wall that is suspended from the peripheral edge of the top wall, and a seal cylinder that is suspended from the inner surface of the top wall and seals the extraction cylinder of the cap body,
The cap body has a notch formed by notching a part of the lid engaging portion on the hinge side, and an inner wall erected from the upper surface of the base wall inside the notch, and when the lid is closed, An air cap is formed between the inner wall and the hinge cap.   The hinge cap according to claim 1, wherein the notch is within a range of the hinge, and the height of the inner wall is equal to or higher than the height of the lid engaging portion.   The hinge cap according to claim 2, wherein the cutout portion is formed so as to avoid the central portion of the hinge.   The length of the inner wall is made longer than the length of the notch, and the air passage is formed by overlapping the end of the inner wall and the end of the lid engaging portion. The hinge cap as described.   5. The hinge cap according to claim 3, wherein the inner wall has a lid engaging portion pulled inwardly from both ends of the notch portion, and a missing portion is formed in the middle.   The hinge cap according to any one of claims 1 to 5, wherein two notches are formed on the lower end of the upper lid side peripheral wall on the hinge side within the hinge.

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