JP2006016056A - Storage container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a storage container which makes it possible to securely find that the sealing is fraudulently opened, which ensures easy initial opening operation and a lid is easily opened/closed after the container is opened, and which has excellent in sealability of the lid closed after the container is opened. <P>SOLUTION: The storage container 1 comprises a body 2, and the lid 3 attachable/detachable to/from its opening 2a. The lid 3 has a top plate 3a, and a skirt 3b extending downward from the outer circumference of the top plate 3a. A fitting projection 4 projects out from the upper edge of the body 2, and a locking flange 5 is disposed below the fitting projection 4. A fitting groove 6 in which disengageable fitting projection 4 fits is formed in the internal face of the lid 3. The skirt 3b has a locking claw 7 that engages with the locking flange 5 so as to be disengageable, The skirt 3b also has an opening flap 9 having a position return function, which is formed by providing the skirt 3b with discontinuous segments 8. The opening flap 9 includes a lock claw 10 that engages with the locking flange 5 so as to be disengageable, and an opening tap 11 used to separate the lock claw 10 from the locking flange 5. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a storage container having a function of preventing unauthorized opening in a distribution process.

  Since storage containers for food, medicines, etc. need to prevent unauthorized opening in the distribution process, various types of unauthorized opening prevention means have been proposed in the past. There is a tamper-evident container described in 1.

  This tamper-evident container comprises a container body and a lid, and the side wall of the lid is formed at a height that reaches the flange of the container body, and is opened by a notch that does not form the flange of the container body. Provided with a locking part (lid locking part) that engages with the locking part (main body locking part) of the container body on the inner surface of the lid opening part provided with the tab, and the lid opening part is composed of the thin part and the opening tab It is a thing. Since the lid cannot be opened without breaking the thin wall portion of the lid opening portion, unauthorized opening during the distribution process can be prevented.

JP 08-244812 (page 3-10)

  The tamper-evident prevention container described in Patent Document 1 has a structure in which the opening tab provided on the lid can be interposed only in the notch portion of the flange of the container body. It is necessary that the position of the notch part of this part completely coincide. Therefore, if the planar shape is a substantially rectangular container, the positional relationship between the container main body and the lid body at the time of closing is determined, which is preferable, but the positional relationship between the lid body and the container main body is not uniquely determined. When the above structure is adopted for a circular container, it is necessary to align the opening tab of the lid body with the notch portion of the flange of the container body every time the lid is closed, and the closing operation is troublesome.

  Moreover, since the notch part is provided in the flange of the container main body, the strength of the container main body may be insufficient. Once the container is opened, the sealing performance at the time of closing the lid tends to deteriorate. Furthermore, since it is necessary to provide a main body unauthorized opening prevention rib (main body locking portion) for locking the lid unauthorized opening rib (lid locking portion) provided on the opening tab on the container main body separately from the flange. The structure is complicated and the manufacturing process becomes complicated.

  The problem to be solved by the present invention is that it is possible to reliably detect unauthorized opening, easy opening and closing after the first opening operation, and sealing of the lid when closing after opening. It is in providing the storage container excellent also in the property.

A storage container according to the present invention includes a bottomed cylindrical main body, a top plate covering an opening of the main body, and a skirt that is suspended from the outer periphery of the top plate, and a lid that can be attached to and detached from the main body. Because
A bulging-shaped fitting ridge is provided along the upper edge of the main body, and a locking flange is provided on the outer peripheral surface of the main body below the fitting ridge,
A fitting groove is provided on the inner surface of the lid so that the fitting protrusion can be removably fitted,
The skirt portion is provided with a locking claw that is detachably engaged with the locking flange, and an opening piece having a posture returning function formed by providing a thin portion or an intermittent portion on the skirt portion,
The opening piece is provided with a lock claw that is detachably engaged with the locking flange, and an opening tab for detaching the lock claw from the locking flange.

  Here, having the posture return function means having a function of elastically deforming when an external force is applied and returning to the original posture when the external force is released. A thin-walled part is a part where the thickness of the material is thinner than the surrounding area, and an intermittent part is a part where the material is not continuous over the entire surface and there are alternating cuts and continuous parts. The part which has the intensity | strength of the grade which can be fractured | ruptured by applying external force of a grade.

  Attach the lid to the main body so that the opening of the main body is covered with the top plate of the lid, fit the fitting protrusion on the upper edge of the main body into the fitting groove on the lid, and When the locking claw and the locking claw of the opening piece are engaged with the locking flange of the main body, the opening of the main body is sealed with the lid. When opening a container in such a sealed state, if a finger or the like is hooked on the opening tab of the opening piece and moved in the release direction, the thin-walled portion or the interrupted portion breaks due to the concentration of tensile stress, and the unlocking claw of the opening piece Is detached from the locking flange, so that the lid can be easily opened.

  Further, if the first opening operation is performed, the thin-walled portion or the intermittent portion is surely broken, so that it is possible to visually confirm whether or not the storage container has been opened by looking at this portion. Therefore, when this storage container is placed in a distribution process or the like, it is possible to reliably detect unauthorized opening.

  If the force applied to the unsealing tab during the unsealing operation is released, the unsealing piece will return to its original position due to its posture return function, and thereafter, the lid body will again cover the opening of the main body with the top plate of the lid body. Is attached to the main body, the fitting ridge on the upper edge of the main body is inserted into the fitting groove on the lid, and the locking claw on the lid skirt and the locking claw on the opening piece are used as the locking flange on the main body. When engaged, the opening of the main body is sealed with a lid. Since the subsequent opening operation is the same as the first opening operation, it is easy to close and open the lid after opening. Since it will be in the state inserted in the fitting groove | channel, the airtightness of the cover body at the time of the cover closing after opening is also excellent.

  Further, since the locking claw of the lid and the locking claw of the opening piece can be locked at any position of the locking flange of the main body, the locking claw and the opening piece of the lid with respect to the locking flange of the main body There is no need to uniquely determine the locking position of the lock claw. Therefore, even if the mounting shape of the lid body with respect to the container body can be mounted by rotating the mounting posture of the lid body about its axis, such as a storage container having a circular or regular polygonal plan shape of the main body and the lid body, There is no need to align between the lid and the body.

  Here, it is desirable that a locking groove is provided on the lower surface of the locking flange along the circumferential direction of the flange, and a protrusion that is detachably fitted in the locking groove is provided on the lock claw of the opening piece. With such a configuration, when the lid is closed, the protrusion is fitted in the locking groove, so that the locking force of the locking claw of the opening piece with respect to the locking flange is increased, and the sealing performance of the lid is improved. .

  On the other hand, in the closed state, it is desirable that the lower edge of the skirt portion of the lid body is in a position surrounding the outer periphery of the locking flange of the main body. With such a configuration, the outer periphery of the locking flange is covered with the skirt portion of the lid, and the gap between the skirt portion and the locking flange is not exposed to the outside. It becomes easy to visually recognize that it is a part of an opening piece (opening tab), and convenience improves. Further, unauthorized opening from a portion other than the opening piece (opening tab) can be prevented.

  Further, locking claws are provided at two locations on the skirt portion, and opening pieces are provided at one location on the skirt portion, and these locking claws and opening pieces are arranged at equal intervals along the circumferential direction of the skirt portion. It is desirable. With such a configuration, a stable sealing performance of the lid can be obtained with a minimum number of locking claws and opening pieces.

  The present invention has the following effects.

(1) In a storage container including a bottomed cylindrical main body and a lid body having a top plate portion and a skirt portion, a fitting protrusion is provided along the upper edge of the main body. A locking claw that is provided with a locking flange on the lower side, has a fitting groove on the inner surface of the lid for releasably fitting the fitting protrusion, and engages with the locking flange on the skirt portion. And an opening piece having a posture return function formed by providing a thin-walled portion or an intermittent portion in the skirt portion, and a locking claw that is detachably engaged with the locking flange and a locking claw on the opening piece. By providing an opening tab for detachment operation from the locking flange, it is possible to reliably detect unauthorized opening, easy opening and closing after opening, and easy opening. The lid is also excellent in sealing performance when the lid is closed.

(2) If a locking groove is provided on the lower surface of the locking flange along the circumferential direction of the flange, and a protrusion that is detachably fitted into the locking groove is provided on the locking claw of the opening piece, The locking force of the locking claw of the opening piece with respect to the locking flange is increased, and the sealing performance of the lid is improved.

(3) When the lower edge of the skirt portion of the lid body is in a position surrounding the outer periphery of the locking flange of the main body in the closed state, it is visually confirmed that the opening piece (opening tab) is the opening location. In addition to improving convenience, unauthorized opening from a portion other than the opening piece (opening tab) can be prevented.

(4) By providing locking claws at two locations on the skirt portion, providing an opening piece at one location on the skirt portion, and arranging the locking claws and the opening pieces at equal intervals along the circumferential direction of the skirt portion, With a minimum number of locking claws and opening pieces, a stable sealing of the lid can be obtained.

  Hereinafter, based on the drawings, an unauthorized opening prevention container according to an embodiment of the present invention will be described in detail. 1 is a perspective view showing a storage container according to an embodiment of the present invention, FIG. 2 is a plan view of a container main body constituting the storage container shown in FIG. 1, and FIG. 3 is a plan view of the container main body shown in FIG. FIG. 4 is a front view, FIG. 4 is a plan view of a lid constituting the storage container shown in FIG. 1, and FIG. 5 is a front view of the lid shown in FIG.

  As shown in FIGS. 1 to 5, the storage container 1 of the present embodiment includes a bottomed and substantially cylindrical main body 2 and a lid 3 that can be attached to and detached from the opening 2 a of the main body 2. Comprises a top plate portion 3a covering the opening 2a of the main body 2 and a skirt portion 3b hanging from the outer periphery of the top plate portion 3a. The upper edge portion of the main body 2 is provided with a protruding protrusion 4 having a bulging shape along the entire circumferential direction, and a locking flange 5 is provided on the outer peripheral surface of the main body 2 below the protruding protrusion 4. A vertical rib 16 is provided below the locking flange 5.

  Here, FIG. 6 is a vertical sectional view of the storage container shown in FIG. 1 in the opened state, FIG. 7 (a) is an enlarged view of part A in FIG. 6, and (b) is an enlarged view of part B in FIG. (C) is an enlarged view of a portion C in FIG. As shown in FIG. 6 and FIG. 7, a fitting groove 6 into which the fitting protrusion 4 is detachably fitted is formed in the boundary portion between the top plate portion 3 a and the skirt portion 3 b on the inner surface of the lid 3. The skirt portion 3b is provided with a locking claw 7 detachably engaged with the locking flange 5 of the main body 2 and a pair of intermittent portions 8 parallel to the skirt portion 3b. An opening piece 9 having a function is provided.

  Further, the opening piece 9 is provided with a lock claw 10 detachably engaged with the locking flange 5 and an opening tab 11 for detaching the lock claw 10 from the locking flange 5. . In addition, as shown in FIG. 5, the intermittent part 8 does not continue the material over the entire surface, and the cuts and the continuous parts are alternately present, and it can be broken by applying an external force similar to a human finger. Has strength.

  Further, a locking groove 12 having a semicircular cross section is provided on the lower surface of the locking flange 5 of the main body 2 along the entire circumferential direction of the flange 5, and the locking claw 10 of the opening piece 9 of the lid 3 is provided. On the upper surface, there is provided a protrusion 13 that is detachably fitted into the locking groove 12. Here, the opening piece 9 having the posture returning function means that the opening piece 9 has a function of elastically deforming when an external force is applied to the opening piece 9 and returning to the original posture when the external force is released. Therefore, for example, as shown in FIG. 7B, when an external force is applied to the unsealing tab 11 in the direction of the arrow 14, the unsealing piece 9 is elastically deformed in the direction of the arrow 14 around the hinge 9 a and releases the external force. Then, the opening piece 9 returns to the direction of arrow 15 and returns to the original posture.

  Here, a procedure for closing the main body 2 with the lid 3 will be described with reference to FIGS. The lid 3 is mounted on the main body 2 so that the opening 2 a of the main body 2 is covered with the top plate portion 3 a of the lid 3, and the fitting protrusion 4 on the upper edge of the main body 2 is fitted into the fitting groove 6 of the lid 3. 8, when the locking claw 7 of the skirt 3 b of the lid 3 and the locking claw 10 of the opening piece 9 are engaged with the lower surface of the locking flange 5 of the main body 2, as shown in FIG. 8. The opening 2a of the main body 2 is sealed with the lid 3.

  In this state, the fitting protrusion 4 on the upper edge of the main body 2 is fitted in the fitting groove 6 of the lid 3 over the entire circumference, and the locking claw 7 of the skirt portion 3b and the unlocking piece 9 are locked. Since the claw 10 grips the locking flange 5 from the lower surface side, the sealing property is good, and the scent and smell of the stored matter (not shown) in the main body 2 are not leaked. For this reason, food can be placed in the distribution process with peace of mind in a state of being stored in the storage container 1.

  When a general consumer who purchases food stored in the storage container 1 opens the storage container 1 in a sealed state as shown in FIG. 8, he or she hooks a finger or the like on the opening tab 11 of the opening piece 9, When moving in the direction of the arrow 14 shown in 9 (b) (withdrawal direction), due to the concentration of tensile stress, the interrupted portions 8 on both sides of the opening piece 9 are broken and the opening piece 9 is deformed in the direction of the arrow 14, At the same time as the protrusion 13 is detached from the locking groove 12, the lock claw 10 is detached from the locking flange 5. Therefore, if the claw 7 is lifted so as to rotate about the 180 ° -opposing portion of the opening piece 9 of the lid 3 after that, the locking claw 7 is detached from the locking flange 5 so that the lid can be easily opened. it can.

  As described above, when the first opening operation is performed on the storage container 1, the intermittent portions 8 on both sides of the opening piece 9 are surely broken, so it is visually confirmed whether or not the storage container 1 has been opened by looking at this portion. can do. Therefore, even when the storage container 1 is placed in a distribution process or the like, it is possible to reliably detect unauthorized opening.

  On the other hand, if the force applied to the unsealing tab 11 during the unsealing operation is released, the unsealing piece 9 returns to the original posture along the direction of the arrow 15 in FIG. The lid 3 is mounted on the main body 2 so that the opening 2a of the lid 3 is covered with the top plate portion 3a of the lid 3, the fitting protrusion 4 of the main body 2 is fitted into the fitting groove 6 of the lid 3, and the lid If the locking claw 7 of the skirt 3 b of the body 3 and the locking claw 10 of the opening piece 9 are engaged with the locking flange 5 of the main body 2, the opening 2 a of the main body 2 is sealed with the lid 3.

  Since the subsequent opening operation is the same as the first opening operation, the lid closing operation and the opening operation after opening once are easy. If the lid is closed, the fitting protrusion on the upper edge portion of the main body 2 is easy. Since 4 is inserted into the fitting groove 6 of the lid 3, the lid 3 is excellent in sealing performance when the lid is closed after opening.

  As described above, the locking groove 12 is provided on the lower surface of the locking flange 5 along the circumferential direction thereof, and the protrusion that is detachably inserted into the locking groove 12 on the upper surface of the lock claw 10 of the opening piece 9. 13 is provided. Therefore, when the lid is closed, the protrusion 13 is fitted into the locking groove 12, and the locking force of the locking claw 10 of the opening piece 9 with respect to the locking flange 5 is high, and a stable sealing property can be obtained.

  On the other hand, when the storage container 1 is in the closed state as shown in FIG. 8, the lower edge 3 c of the skirt portion 3 b of the lid 3 is the outer periphery 5 a of the locking flange 5 of the main body 2 as shown in FIG. 10. Is in a position to surround. Therefore, the outer periphery 5a of the locking flange 5 is covered with the skirt portion 3b of the lid 3, and the gap between the skirt portion 3b and the locking flange 5 is not exposed to the outside. For this reason, it is easy to visually recognize that the opening part of the storage container 1 is the part of the opening piece 9 (opening tab 11), and it is excellent in convenience. Further, since the gap between the skirt portion 3b and the locking flange 5 is not exposed to the outside, unauthorized opening from a portion other than the opening piece 9 (opening tab 11) can be prevented.

  Moreover, in the storage container 1 of this embodiment, the latching claw 7 is provided in two places of the skirt part 3b, the opening piece 9 is formed in the same place, and these latching claws 7 and the opening piece 9 are for latching. It arrange | positions along the circumferential direction of the flange 5 at equal intervals (120 degree intervals). Therefore, stable sealing performance of the lid 3 can be obtained with the minimum number of the locking claws 7 and the opening pieces 9. In addition, since the number of the latching claw 7 and the opening piece 9 is not limited to this, it can be arbitrarily determined according to various conditions such as the size and shape of the container.

  Further, when the plurality of vertical ribs 16 provided on the lower surface side of the locking flange 5 of the main body 2 constituting the storage container 1 are stacked in the same direction on the plurality of empty main bodies 2, It functions as a spacer that abuts against the fitting protrusion 4 of the main body 2 to avoid mutual contact. For this reason, when the plurality of empty main bodies 2 are stacked in the same direction, the main bodies 2 can be prevented from being detachably fitted.

  In the storage container 1 of the present embodiment, the locking claw 7 of the lid 3 and the locking claw 10 of the opening piece 9 can be locked at any position of the locking flange 5 of the main body 2. There is no need to uniquely define the engaging position of the engaging claw 7 of the lid 3 and the locking claw 10 of the opening piece 9 with respect to the second engaging flange 5.

  Therefore, even if the storage container 1 can be mounted by rotating the mounting posture of the lid 3 relative to the main body 2 around its axis, the planar shape of the main body 2 and the lid 3 is relative to the main body 2. Regardless of the mounting position of the lid 3, it is possible to obtain stable hermeticity and excellent lid opening and closing properties. In addition, even if the planar shape of the main body and the lid is a regular polygon, the same effect can be obtained as long as the positional relationship between the side and the corner between the main body and the lid matches.

  INDUSTRIAL APPLICABILITY The present invention can be widely used in the field of the food industry and the like as a storage container for foods and the like that require an unauthorized opening prevention function.

It is a perspective view which shows the storage container which is embodiment of this invention. It is a top view of the container main body which comprises the storage container shown in FIG. It is a front view of the container main body shown in FIG. It is a top view of the cover body which comprises the storage container shown in FIG. It is a front view of the cover body shown in FIG. FIG. 2 is a vertical cross-sectional view of the storage container shown in FIG. 1 in an open state. (A) is the A section enlarged view in FIG. 6, (b) is the B section enlarged view in FIG. 6, (c) is the C section enlarged view in FIG. It is a vertical sectional view in the closed state of the storage container shown in FIG. (A) is the D section enlarged view in FIG. 8, (b) is the E section enlarged view in FIG. It is a partial vertical sectional view in the closed state of the storage container shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Storage container 2 Main body 2a Opening part 3 Cover body 3a Top plate part 3b Skirt part 3c Lower edge 4 Fitting protrusion 5 Locking flange 5a Outer periphery 6 Fitting groove 7 Locking claw 8 Interlocking part 9 Opening piece 9a Hinge part 10 Locking Claw 11 Opening Tab 12 Locking Groove 13 Projection 14, 15 Arrow Line 16 Rib

Claims (4)

A storage container comprising a bottomed cylindrical main body, a top plate portion covering the opening of the main body, and a skirt portion hanging from the outer periphery of the top plate portion, and a lid detachable from the main body,
Protruding fitting ridges are provided along the upper edge of the main body, and a locking flange is provided on the outer peripheral surface of the main body below the fitting ridge,
A fitting groove is provided on the inner surface of the lid so that the fitting protrusion is detachably fitted,
The skirt portion is provided with a locking claw removably engaged with the locking flange, and an opening piece having a posture returning function formed by providing a thin wall portion or an intermittent portion on the skirt portion,
A storage container, wherein the opening piece is provided with a lock claw removably engaged with the locking flange, and an opening tab for detaching the lock claw from the locking flange. .   The storage container according to claim 1, wherein a locking groove is provided on a lower surface of the locking flange along a circumferential direction of the flange, and a protrusion that is removably fitted into the locking groove is provided on a lock claw of the opening piece. .   The storage container according to claim 1 or 2, wherein the lower edge of the skirt portion of the lid body is in a position surrounding the outer periphery of the locking flange of the main body in the closed state.   The locking claws are provided at two locations of the skirt portion, the opening pieces are provided at one location of the skirt portion, and the locking claws and the opening pieces are arranged at equal intervals along the circumferential direction of the skirt portion. The storage container according to any one of claims 1 to 3.

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