JP2007045421A - Hinge cap with falsification-proof function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hinge cap with a falsification-proof function having good appearance and capable of preventing generation of any part which must be handled separately from an unsealed container through removal or withdrawal. <P>SOLUTION: The hinge cap with the falsification-proof function is equipped with a finger-hooking recess 23 which is formed in an outer peripheral wall 10a on a front end side of a lid body part 5 and is to open an upper lid 7 in a closed state, a falsification-proof member 21 which is integrated with the outer peripheral wall on the front end side via a hinge part 24 in the finger-hooking recess so as to be along an outer surface of the outer peripheral wall on the front end side to seal the finger-hooking recess, a holding part 27 for detachably holding the falsification-proof member, and a fixing part 28 for fixing the falsification-proof member which is detached from the holding part by the pressing operation, hinge-turned with the hinge part as a supporting point, and pressed inward of the finger-hooking recess, inward of the finger-hooking recess. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a hinge cap with a tamper-proof function that exhibits a good appearance and does not generate a part that needs to be handled separately from an opened container by being removed or removed.

  Conventionally, for example, those disclosed in Patent Documents 1 and 2 are known as techniques related to a hinge cap having a function of preventing tampering to prevent the container from being opened illegally or mixing foreign matter into the contents. It has been.

  The “hinge cap with tampering prevention function” of Patent Document 1 is a hinge cap that is attached to the neck portion of a container body, and is formed integrally with a lid body and an upper lid via a hinge portion. A ring-shaped tamper-proof member (“guard piece”) that can be removed from the lid body is formed over the entire circumference. Each of the inner peripheral portion of the tamper-preventing member and the outer peripheral wall of the upper lid is formed with an engaging convex portion and an engaging concave portion that are fitted to each other, and on the side surface of the upper lid, the upper portion is a flange portion and the lower portion is a small diameter portion. The small-diameter portion is fitted inside the tamper-preventing member, and the flange portion has the same diameter as the tamper-preventing member or a smaller diameter than the tamper-preventing member. When opening the hinge cap with an anti-tampering function, first a pull tab formed protruding from a part of the anti-tampering member is pulled to form a cut-out portion formed between the upper side of the lid body and the anti-tampering member. And tamper-proof member is removed. Then, the small-diameter portion that forms the finger-hanging space for opening the finger by placing the finger on the flange portion of the upper lid is exposed, so that the finger can be lifted by hooking the flange portion, and the upper lid can be opened.

The “hinge cap with virgin mechanism” of Patent Document 2 is attached to the neck of the container body to form a spout for contents, and is formed integrally with the rear end of the bottom cover via a hinge. A hinge cap with an anti-tampering function, which includes an upper lid that can be freely opened and closed, and has a ring-shaped anti-tampering member (“ring component”) straddling the lower end portion of the upper lid outer peripheral surface and the upper end portion of the lower lid outer peripheral surface. In the vicinity of the hinge on the upper surface rear end side of the lower lid, an insertion groove for inserting an insertion piece portion which is a rear end portion of the ring-shaped tamper-proof member is formed. At the upper end of the outer peripheral surface of the lower lid, a first step portion that is annularly connected from both ends of the insertion groove to the front end side is recessed, and further, at the front end of the outer peripheral surface of the lower lid is below the open / close end of the closed upper lid A recess is formed that is exposed to the edge and serves as a finger-hanging portion when the upper lid is opened. A second stepped portion that is continuous with the first stepped portion of the lower lid is recessed in the lower end of the outer peripheral surface of the upper lid. The ring-shaped tamper-preventing member is composed of the insertion piece portion and a circumferential piece portion that is connected in an annular shape from the insertion piece portion to the front end side and is fitted over the first and second step portions. A protrusion and an engagement hole that are engaged with each other are formed on the inner side surface of the portion and the outer side surfaces of the first and second stepped portions. Furthermore, a tear piece surrounded by two vertically long thin film portions for cutting is formed at the front end portion of the tamper-preventing member, and a pull tab (for pulling when the tear piece is cut) is provided below the tear piece. "Grip piece") is projected. When opening, first, the thin film portion is cut by raising the pull tab while picking up, and the cut piece is removed. Then, it is possible to sufficiently push open the circumferential piece portion that has continued to the left and right of the cut piece, the recess for hanging the upper lid finger is sufficiently exposed, and the projections provided in the upper and lower two stages and the first and second both Since the engagement with each engagement hole provided in the step portion is released, the upper lid can be opened. After the upper lid is opened, the circumferential piece portion and the insertion piece portion, which are portions other than the tear pieces of the falsification preventing member, are pulled upward and removed.
JP 2001-171713 A JP 2001-315820 A

  By the way, in each of the above background arts, there is a problem that a portion having an appearance defect is generated. This is specifically shown below.

  In Patent Document 1, the small-diameter portion of the upper lid and the engagement concave portion formed on the small-diameter portion are exposed over the entire circumference of the hinge cap at the portion where the tamper-proof member is removed. Further, in Patent Document 2, after removing the tamper-preventing member, the first and second stepped portions extending from the lower end of the upper lid to the upper end of the lower lid over almost the entire circumference of the hinge cap, and further on both stepped portions. The formed engagement hole was exposed. These parts that are exclusively used to engage with the tamper-preventing member, such as the small-diameter portion and the engagement recess in Patent Document 1 and the two step portions and the engagement hole in Patent Document 2, are exposed after opening, Appearance was very uncomfortable.

  Moreover, in patent document 1, since the tampering prevention member was removed by tearing the cut-out part over the entire circumference, a cut portion having a relatively long dimension had been exposed. It is not good to look at the cut part caused by tearing by hand, such as burrs, and such a cut part is exposed after opening, and it is exposed over a relatively long dimension. In appearance, the impression was extremely bad or uncomfortable.

  Furthermore, in any of the above background arts, it is necessary to handle the removed or removed part of the tamper-preventing member separately from the opened container for disposal, etc., which is very inconvenient. It was. Specifically, in Patent Document 1, it is necessary to handle the tamper-proof member removed, and in Patent Document 2, the torn pieces that have been cut and removed and the remaining part of the tamper-proof member that has been removed must be handled separately from the container. It was.

  The present invention was devised in view of the above-described conventional problems, and has a good appearance, and tampering that does not cause a portion that needs to be handled separately from an opened container by removing or removing it. An object is to provide a hinge cap with a prevention function.

  The hinge cap with an anti-tampering function according to the present invention includes a lid body portion that is attached to the neck portion of the container body to form a spout for contents, and a hinge provided on the rear end side of the lid body portion. A hinge cap formed integrally with a lid main body portion and having an upper lid for opening and closing the spout, and opening the closed upper lid formed on the outer peripheral wall of the front end side of the lid main body portion A finger-hanging recess and a finger-hanging recess formed integrally with the front-end outer peripheral wall through the hinge portion in the finger-hanging recess along the outer surface of the front-end outer peripheral wall. An anti-tampering member that seals the place, a holding part that releasably holds the anti-tampering member, and a pressing operation that separates the holding part from the holding part, and is rotated by a hinge with the hinge part as a fulcrum. The above tampering A stop member, characterized in that a fixing part for fixing the inside of the finger hanging recess.

  In the hinge cap with a tamper-proof function according to the present invention, a good appearance is exhibited, and a portion that needs to be handled separately from the opened container is not generated by removing or removing.

  Preferred embodiments of a hinge cap with a tamper-proof function according to the present invention will be described below in detail with reference to the accompanying drawings. The hinge cap 1 with a tamper-proof function according to the first embodiment (hereinafter simply referred to as the hinge cap 1) is basically attached to the neck 3 of the container body 2 as shown in FIGS. The lid main body 5 is formed integrally with the lid main body 5 via the lid main body 5 for forming the spout 4 and the hinge 6 provided on the rear end side of the lid main body 5 so that the spout 4 can be opened and closed freely. An upper lid 7 is included. The container body 2 includes a body portion 8 having a substantially square shape in plan view, a cylindrical neck portion 3 disposed substantially at the center of the body portion 8 in plan view, and an inclined surface that connects the body portion 8 and the neck portion 3. It is composed of a shoulder portion 9.

  The outer contour of the hinge cap 1 has a substantially square shape in plan view along the trunk portion 8 of the container body 2. The outer surface of the hinge cap 1 and the outer surface of the container body 2 body 8 are formed substantially flush with each other. The planar shape of the hinge cap 1 and the container body 2 trunk portion 8 is not limited to a square, and other shapes such as a circle are possible. The hinge cap 1 is formed of a synthetic resin such as polyethylene. The container body 2 can be made of various materials such as synthetic resin and glass.

  The lid body portion 5 is generally composed of a substantially square cylindrical outer peripheral wall 10 and a flat plate-like ceiling portion 11 formed immediately inside the outer peripheral wall 10 so as to be continuous with the upper end of the outer peripheral wall 10. The ceiling portion 11 is formed such that the lower surface thereof is at the same height as the upper end of the outer peripheral wall 10. In the center of the ceiling portion 11, a spout 4 for taking out the contents of the container body 2 is formed so as to protrude upward. An outwardly hooked first hook portion 12 is formed at the upper part of the outer peripheral surface of the cylindrical spout 4.

  A cylindrical first fitting portion 13 that is fitted to the neck portion 3 of the container main body 2 is integrally suspended from the bottom surface side of the ceiling portion 11 at a substantially middle position between the center and the outer peripheral end portion. . An annular recess 15 that engages with an annular protrusion 14 formed on the outer peripheral surface of the neck 3 is formed on the inner peripheral surface of the first fitting portion 13.

  A thin hinge 6 (hereinafter simply referred to as a hinge 6) is formed at the center of the upper end of the rear end side outer peripheral wall 10b of the lid main body portion 5, and the lid main body portion 5 and the upper lid 7 are hinge-coupled. Yes.

  The upper lid 7 is generally formed so as to cover the second outer peripheral wall 16 whose outer surface is substantially flush with the outer surface of the outer peripheral wall 10 of the lid main body 5 and the upper end of the second outer peripheral wall 16. It consists of a flat top plate portion 17. A cylindrical second fitting portion 18 that mates with the spout 4 of the lid main body portion 5 when the upper lid 7 is closed is suspended from the center of the lower surface side of the top plate portion 17. An inwardly hooked second hook portion 19 is formed at the lower end of the inner peripheral surface of the second fitting portion 18 and engages with the first hook portion 12 of the spout 4. Here, the outer surface of the second outer peripheral wall 16 of the upper lid 7 does not necessarily need to be flush with the outer surface of the outer peripheral wall 10 of the lid main body 5, and the upper lid 7 cannot be opened with a finger. That's fine. For example, the outer surface of the second outer peripheral wall 16 of the upper lid 7 may be located inward of the outer peripheral wall 10 of the lid main body 5.

  In addition, a hook piece 20 is integrally formed at the lower end central portion of the front end side second outer peripheral wall 16a of the upper lid 7 so as to protrude downward when the upper lid 7 is closed. At the lower end of the hook recess 20a formed at the center of the lower end of the hook piece 20, a third hook portion 20b having a hook-like shape toward the rear end that engages with a fourth hook portion 22 of a falsification preventing member 21 described later is formed. Has been.

  A finger hook for opening the closed upper lid 7 is provided between the front end side outer peripheral wall 10a and the front end side 13a of the outer peripheral surface of the first fitting portion 13 of the upper lid 7 on the front end side of the lid main body 5. A recess 23 is formed. The user of the hinge cap 1 inserts a thumb or the like into the finger-hanging recess 23 and opens the upper lid 7 by placing the finger on the lower end portion of the second outer peripheral wall 16a on the front end side of the closed upper lid 7 and lifting it. can do.

  However, the finger-hanging recess 23 is sealed by providing the falsification preventing member 21 before the hinge cap 1 is opened. The tamper-preventing member 21 has a shape that exactly fits a substantially rectangular cutout formed at the center of the front end side outer peripheral wall 10a, and is located at a position along the outer surface of the front end side outer peripheral wall 10a. The lower end portion is provided integrally with the front end side outer peripheral wall 10a via a hinge portion 24 formed thin. The thickness dimension in the front-rear direction of the falsification preventing member 21 is the same as that of the front end side outer peripheral wall 10a, and the outer surface of the falsification preventing member 21 is the outer surface of the front end side outer peripheral wall 10a in the state before opening. To be flush with each other. Here, the outer surface of the falsification preventing member 21 does not necessarily have to be flush with the outer surface of the front end side outer peripheral wall 10a in the state before opening, and the upper lid 7 is inserted by inserting a finger into at least the finger hanging recess 23. For example, may be located slightly outward or inward from the outer surface of the front end side outer peripheral wall 10a.

  More specifically, the tamper-preventing member 21 has a lower end defined by a lateral slit 25 that is cut out between the front end side outer peripheral wall 10a. A thin hinge portion 24 is provided at the center of the horizontal slit 25, and the front end side outer peripheral wall 10 a and the lower end portion of the tamper prevention member 21 are integrally connected. The left and right side ends of the tamper-preventing member 21 are demarcated by vertical slits 26 formed by vertically cutting the front end side outer peripheral wall 10a. Since the upper ends of both vertical slits 26 reach the upper end of the front end side outer peripheral wall 10a, the tamper-preventing member 21 is inward of the finger-hanging recess 23 with the hinge portion 24 at the lower end as a fulcrum and the upper end as a free end. The hinge can be rotated on the rear end side.

  In the state before opening, the falsification preventing member 21 is detachably engaged and held by the holding portion 27 at a position along the outer surface of the front end side outer peripheral wall 10a. Since both the left and right holding portions 27 in the present embodiment have a slight cross-sectional protrusion shape or a thread shape that connects the front end side outer peripheral wall 10a and the tamper prevention member 21, the tamper prevention member 21 is operated by pressing it. It can be easily broken. Note that the holding portion 27 may be anything that can be broken by a pressing operation to the tamper-proof member 21, and the cross-sectional area and the like may be slightly larger than those of the present embodiment as long as the holding portion 27 is within the range. I do not care. Both holding portions 27 are formed near the upper ends of both vertical slits 26. Further, the length dimension of both the holding portions 27, that is, the dimension in the horizontal direction is the same as the width dimension of the vertical slit 26, but the width dimension of both the vertical slits 26 is very small, for example, about 0.5 to 1 mm. Therefore, the length dimension of both holding portions 27 is also very small. Moreover, since the cross-sectional shape of both holding parts is small as mentioned above, both holding parts 27 are preferable because they hardly stand out from the outside in appearance. In addition, not only the state before opening, but also after opening, that is, in the state where the upper end side of the falsification preventing member 21 is pushed inward of the finger hanging recess 23, both holding portions 27 are hardly noticeable. It is very preferable in appearance.

  Here, the configuration of the holding portion is not limited to that of the present embodiment, and at least before opening, a position along the outer surface of the front-end-side outer peripheral wall 10a of the tampering-preventing member 21 of the finger-hanging recess 23 Any material can be used as long as it is detachable. For example, the falsification preventing member 21 and the front end side outer peripheral wall 10a may be formed separately and joined. Further, it is not provided in the vertical slit 26, but is formed on the rear end side of the vertical slit 26 so as to protrude from the rear end side surface of the front end side outer peripheral wall 10a so as to reach the rear end side surface of the falsification preventing member 21. Also good. In the latter case, when pressing the tamper-proof member 21 inward of the finger-hanging recess 23, the tamper-preventing member 21 is first elastically deformed rearward by moving to the rear end side, Further, it is only necessary to move away from the holding portion by moving to the rear end side. In such a case, since it is not necessary to break the holding portion, the shape of the holding portion may not necessarily be as small as the holding portion 27 of the present embodiment in terms of cross-sectional area and length.

  Further, a hook-like fourth hook portion 22 protruding upward is provided at the center of the upper end of the falsification preventing member 21, and is provided at the lower end of the second outer peripheral wall 16a on the front end side of the upper lid 7 described above. The third hook portion 20b thus engaged with each other in a closed state of the upper lid 7 and a state before the falsification preventing member 21 is opened. The engagement state of the third hook portion 20b and the fourth hook portion 22 is that the hook-shaped portions of the third hook portion 20b are engaged in the vertical direction and are not engaged in the front-rear direction (see FIG. 4B). Therefore, the movement that the upper lid 7 is opened upward in the state before opening is prevented, but the movement that the upper end side of the falsification preventing member 21 is moved inward by the pressing operation is allowed.

  Further, the upper end side of the tamper-preventing member 21 that is projected downward from the front end portion of the lower surface side of the ceiling portion 11 of the lid main body portion 5 and is pushed inward of the finger-hanging recess 23 is connected to the finger-hanging recess. A fixing portion 28 is provided for fixing so as not to return to the outer opening portion side of 23. Specifically, the fixing portion 28 engages with the hook-shaped portion of the fourth hook portion 22 formed at the upper end of the pushed-in falsification preventing member 21, so that the falsification preventing member 21 is engaged. Fix it.

  Next, the operation of the hinge cap 1 with a falsification preventing function according to the present embodiment will be described. At the time of manufacturing the hinge cap 1, the lid main body portion 5 and the upper lid 7 are integrally molded with resin, and a tamper-proof member 21 is integrally molded with the lid main body portion 5 via a hinge portion 24. . When the hinge cap 1 is assembled to the container body 2, first, the second fitting portion 18 of the upper lid 7 is fitted to the spout 4 of the lid body 5, and the third hook portion 20 b of the upper lid 7 is prevented from being falsified. The upper lid 7 is closed by engaging with the fourth hook portion 22 of the member 21. Next, the first fitting portion 13 of the lid body portion 5 is fitted to the neck portion 3 of the container body 2 to complete the assembly (see FIGS. 2 and 4).

  In order for a user or the like who has purchased a container to pour out the contents of the container body 2, first, the tamper-proof member 21 provided in the finger-hanging recess 23 and sealing the finger-hanging recess 23, The finger-hanging recess 23 is opened by a pressing operation from the outside. Specifically, both the holding portions 27 are broken by a pressing operation, and by further pushing the tamper prevention member 21, the upper end side of the tamper prevention member 21 is hinge-rotated with the hinge portion 24 at the lower end of the tamper prevention member 21 as a fulcrum, Push inward of the finger-holding recess 23. The tamper-proof member 21 that has been pushed in is fixed inside the finger-hanging recess 23 by the fourth hook portion 22 being locked to the fixing portion 28 of the lid body portion 5. By opening the finger-hanging recess 23 in this manner, it is possible to insert a finger into the finger-hanging recess 23 and open the upper lid 7 (see FIGS. 3 and 5; FIG. 5 shows the upper lid). The outline is drawn, such as omitting.).

  As described above, in the hinge cap 1 with a tamper-proof function of the present embodiment, the lid main body portion 5 that is attached to the neck portion 3 of the container main body 2 to form the spout 4 for the contents, and the lid main body portion And an upper lid 7 that is integrally formed with the lid body 5 via a hinge 6 provided on the rear end side of the 5 and opens and closes the spout 4, and is formed on the outer peripheral wall 10 a on the front end side of the lid body 5. The finger-hanging recess 23 for opening the closed upper lid 7 and the finger-hanging recess 23 along the outer surface of the front-end-side outer peripheral wall 10a and through the hinge 24 The tamper-proof member 21 that is integrally formed with the outer peripheral wall 10a and seals the finger-hanging recess 23; the holding portion 27 that holds the tamper-proof member 21 in a detachable manner; Hinged around 24 as a fulcrum for finger hanging Since the tamper prevention member 21 to be pushed inward of the place 23 is provided with the fixing portion 28 for fixing the tamper prevention member 21 inward of the finger hanging recess 23, the tamper prevention member 21 and a part thereof are torn or torn. There is no need to remove the portion or to remove the entire tamper-preventing member 21 after opening, and the upper lid 7 can be opened simply by pushing the tamper-preventing member 21 into the finger-holding recess 23 by pressing operation. Therefore, unlike the conventional case, the portion used exclusively to engage with the tamper-preventing member is not exposed, and a cut portion having a poor appearance is not generated, and a good appearance is exhibited. Is possible.

  Further, conventionally, it has been necessary to handle the removed or removed part of the tamper-preventing member separately from the opened container in order to dispose of it, which is very inconvenient. 1, it is only necessary to push the falsification preventing member 21 into the finger-holding recess 23, and by removing or removing it, a portion that needs to be handled separately from the opened container does not occur. Very convenient.

  Further, particularly in the present embodiment, the tamper prevention member 21 is formed integrally with the front end side outer peripheral wall 10a of the lid main body part 5 via the hinge part 24. Therefore, the tamper prevention member is a hinge cap. Compared to the case where it is formed separately and assembled separately, it is advantageous in terms of labor and manufacturing cost of the assembly work.

  Further, in the conventional technique, it is necessary to provide a so-called pull tab at a part of the cutting portion in order to perform a cutting operation on the cutting portion such as a cut portion or a tear piece. The pull tab is usually removed when the tamper-proof member is opened. However, the pull tab is projected outward from the outer contour of the hinge cap in the state before opening. It was not preferable in appearance. On the other hand, in the hinge cap 1 with the tamper-proof function of this embodiment, since there is no portion to be cut, there is no need for a pull tab, so it is possible to exhibit a better appearance than before even in a state before opening. It is.

  6 and 7 show a second embodiment of the hinge cap 1 with a tamper-proof function according to the present invention. FIG. 7 schematically illustrates the upper cover is omitted. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted. In the second embodiment, the lower end central portion of the front outer peripheral second outer peripheral wall 16a of the upper lid 7 is not formed with a hook piece hanging down, and is flat with the lower end of other portions of the second outer peripheral wall 16 in a series. Is formed. Therefore, the hook recess of the hook piece and the third hook portion formed in the hook recess are not provided. Similarly, the fourth hook portion is not provided at the center of the upper end of the falsification preventing member 21, and the upper end of the falsification preventing member 21 is in series with the upper end of the front end side outer peripheral wall 10 a across both vertical slits 26. It is formed flat. As a result, in the closed state of the upper lid 7, the lower end of the front end side second outer peripheral wall 16a and the upper end of the falsification preventing member 21 are merely in contact with each other and are not engaged with each other (see FIG. 6). . Further, a fixing portion 28 similar to that of the first embodiment is provided at the front end on the lower surface side of the ceiling portion 11 of the lid main body portion 5, and the tamper-preventing member pushed into the finger-hanging recess 23. The upper end corner portion 21 is engaged with the fixing portion 28 and fixed in the finger hanging recess 23. Even in the hinge cap 1 of the second embodiment, it is needless to say that the same effects as those of the first embodiment can be obtained. In particular, in the second embodiment, it is not necessary to engage the falsification preventing member 21 with the front end side second outer peripheral wall 16a of the upper lid 7, so that the upper lid 7 is closed when the hinge cap 1 is assembled. At this time, it is possible to prevent a pressing force from being accidentally applied to the falsification preventing member 21 and pushing it into the inside of the finger hanging recess 23, that is, accidentally opening the hinge cap 1. .

It is a perspective view which shows 1st Embodiment of the hinge cap with a tampering prevention function concerning this invention. It is a front view of the hinge cap with a tamper-proof function of FIG. It is a perspective view of the state which pushed the tampering prevention member of the hinge cap with a tampering prevention function of FIG. The state before pushing in the tampering prevention member of the hinge cap with a tampering prevention function of FIG. 1 is shown, (a) is a cross section by the AA line of (b), (b) is a longitudinal cross-sectional view. The state after pushing in the tampering prevention member of the hinge cap with a tampering prevention function of FIG. 1 is shown, (a) is a cross section by the BB line of (b), (b) is a longitudinal cross-sectional view. It concerns on 2nd Embodiment of the hinge cap with an anti-falsification function of this invention, and shows the state before pushing in the anti-falsification member, (a) is the cross section by CC line of (b), (b) is a longitudinal cross-section. FIG. The state after pushing the tamper-proof member of the hinge cap with a tamper-proof function of FIG. 6 is shown, (a) is the cross section by the DD line of (b), (b) is a figure of a longitudinal cross-section.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hinge cap with an anti-falsification function 2 Container body 3 Neck part 4 Outlet 5 Lid body part 6 Hinge 7 Upper lid 10a Front end side outer peripheral wall 21 of the lid end part 21 Anti-falsification member 23 Finger rest recess 24 Hinge part 27 Holding part 28 Fixed part

Claims (1)

A lid body portion attached to the neck portion of the container body to form a spout for contents, and a hinge provided on the rear end side of the lid body portion and formed integrally with the lid body portion, A hinge cap with an upper lid for opening and closing the outlet,
A finger-hanging recess for opening the upper lid in the closed state, formed on the outer peripheral wall on the front end side of the lid body portion;
A tamper-proof member that is formed in the finger-hanging recess along the outer surface of the front-end-side outer peripheral wall and integrally with the front-end-side outer peripheral wall via a hinge, and seals the finger-holding recess. ,
A holding portion for detachably holding the tamper-proof member;
A fixing portion that fixes the tamper-proof member that is detached from the holding portion by a pressing operation, is hinged about the hinge portion, and is pushed inward of the finger-hanging recess, to the inside of the finger-holding recess. A hinge cap with a tamper-proof function, characterized by comprising:

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