JP2008162662A - Sealed container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sealed container which is capable of grasping the outer circumferential edge part of a lid or maintaining a sealed state by eliminating a part for hooking an edged tool or the like and further more securely maintains a sealed and fitted state by suitably preventing the outer circumferential edge part of the lid from slipping out of the groove of a container main body. <P>SOLUTION: The sealed container formed of a synthetic resin comprises the container main body having an opening at the upper surface and a lid which is fitted to the container main body. The groove is formed at the upper circumferential edge part of the container main body and an outer circumferential piece is formed at the circumferential edge part of the lid, and the outer circumferential piece is inserted into the groove when the lid is fitted to the container main body. An elastic urging means which enables the outer circumferential piece to be inserted into the groove against an elastic urging force when the outer circumferential piece is inserted into the groove and prevents the outer circumferential piece from slipping out of the groove by the elastic urging force after the outer circumferential piece is inserted into the groove is provided at the inner surface side of a part of a groove forming piece forming the groove. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a hermetically sealed container, and more specifically, a synthetic resin container comprising a container body and a lid, and is used to store food, other pastes, and powders in a sealed state. Concerning the container.

  Conventionally, as this type of sealed container, for example, there are those described in Patent Documents 1 to 3 below. That is, the closed containers disclosed in Patent Documents 1 to 3 are each composed of a container main body having an opening on the upper surface and a lid having a fitting groove that can be fitted to the upper end of the container main body. An annular protrusion is formed on the upper outer peripheral surface of the main body, and an engaging groove portion that can be engaged with the protrusion is formed on the inner wall surface in the fitting groove of the lid, and the engaging groove portion is formed. The thin wall portion of the inner wall surface of the fitting groove is formed as a seal release portion, and the lid is removed from the container body by cutting off the lower portion from the seal release portion, and can be opened.

  Such a sealed container is formed in such a structure that it cannot be opened unless the lower part is cut off from the seal release part. A hermetically sealed state that can be prevented is maintained. For this reason, it is widely applied to food storage such as pickles, plum pickles, and other various side dishes that generate liquids incidentally.

  However, the conventional sealed container as described above is temporarily formed in a structure that cannot be opened unless the lower part is cut off from the seal release portion. However, in some cases, the edge of the lid body is a sharp blade or the like. If you open it, you may open it carelessly.

  Therefore, the present inventors made an invention according to Patent Document 4 below in order to solve such problems. The sealed container according to the present invention has an outer peripheral rising piece and an inner peripheral rising piece formed on the upper peripheral edge of the container body, as described in the claims of Patent Document 4, and the peripheral edge of the lid body. The portion is formed with a falling piece that can be inserted into a groove between the outer peripheral rising piece and the inner peripheral rising piece of the container body, and the outer peripheral rising piece is the inner peripheral rising piece when the lid is fitted to the container main body. The container is placed outside and is in a sealed state, and when opened, the outer peripheral rising piece of the container body is divided in the circumferential direction to release the seal.

  In this container, since the falling piece of the lid is inserted into the groove between the outer peripheral rising piece and the inner peripheral rising piece of the container main body when the lid is fitted to the container main body, The lower end portion of the falling piece cannot be gripped, and the lower end portion of the falling piece has no portion for catching a sharp blade, etc. Therefore, even if it is pryed with the sharp blade, it opens carelessly. And the sealed state as a sealed container can be reliably maintained.

  However, in the invention according to Patent Document 4, since the falling piece of the lid is only inserted into the groove between the outer peripheral rising piece and the inner peripheral rising piece of the container body, the lower end of the falling piece of the lid body It merely prevents the gripping of the part, and does not necessarily prevent the falling piece of the lid from coming out of the groove.

Full text of Shokai 55-53757 Full text of Shokai 56-46554 Japanese Utility Model Publication No.58-143337 JP-A-10-250754

  As described above, according to the present invention, in the state where the lid is fitted to the container main body, the outer peripheral edge of the lid is grasped, or the portion that hooks the blade or the like is eliminated and the container is maintained in a sealed state, and the container is further sealed. It is an object of the present invention to provide a sealed container that can suitably prevent the outer peripheral edge of the lid from slipping out of the groove of the main body, and thereby can maintain the sealed fitting state more reliably. .

  The present invention has been made to solve such a problem, and is made of a synthetic resin made of a container body 1 having an opening 3 on an upper surface and a lid body 2 that can be fitted to the container body 1. In the container, a groove portion 19 is formed in the upper peripheral portion of the container body 1, and an outer peripheral piece 24 is formed in the peripheral portion of the lid body 2, so that the lid body 2 is fitted to the container body 1. When the outer peripheral piece 24 is inserted into the groove 19 and the outer peripheral piece 24 is inserted into the groove 19 on the inner surface side of a part of the groove forming piece 6 forming the groove 19. The outer peripheral piece 24 can be inserted into the groove portion 19 against the bullet urging force, and after the outer peripheral piece 24 is inserted into the groove portion 19, the groove portion of the outer peripheral piece 24 is caused by the elastic urging force. That there is a bullet urging means that can prevent the exit from 19 There is provided a closed container to symptoms.

As the bullet urging means, for example, one such as a bullet locking piece 18 protruding obliquely downward from the outer peripheral piece 7 of the groove forming piece 6 toward the inner peripheral piece 8 side is used. Such a bullet locking piece 18 is formed in such a manner that the container body 1 and the lid body 2 are formed in a substantially rectangular shape having an arcuate portion at a square corner portion, and the arcuate portion of such a corner portion. It is desirable to form in the groove part formation piece 6 of the container main body 1 in FIG.

  Since the present invention is configured as described above, when the lid body is fitted to the container body, the outer peripheral piece of the lid body is placed in the groove portion against the elastic urging force of the elastic urging means. After the outer peripheral piece of the lid can be inserted into the groove, it is preferable to prevent the outer peripheral piece of the lid from coming out of the groove by the elastic biasing force of the elastic biasing means as a reaction. Will be.

  Therefore, in a state where the lid is fitted to the container body, the outer peripheral piece of the lid is inserted into the groove portion of the container main body, and the lower end of the outer peripheral piece of the lid cannot be gripped. The outer peripheral piece of the lid body by the elastic urging force of the elastic urging means as described above while maintaining the sealing property that it does not open carelessly even if it is pry open with a sharp blade etc. As a result, it is possible to suitably prevent the container from coming out of the groove portion, so that there is an effect that the sealing property of the container is further improved.

  Further, as a bullet urging means, when using a thing such as a bullet locking piece projecting obliquely downward from the outer peripheral piece of the groove forming piece toward the inner peripheral piece side, the above configuration is simplified. Thus, there is an effect that it is possible to prevent the outer peripheral piece from coming out of the groove portion by such a bullet urging force.

Furthermore, after the container body and the lid are formed in a substantially rectangular shape having an arcuate portion at a square corner portion, the groove forming piece of the container body in the arcuate portion of such a corner portion is as described above. In the case where a simple bullet locking piece is formed, there is an effect that the bullet biasing force of the bullet locking piece and the flexibility against the bullet biasing force can be further improved.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 to 3, the sealed container of this embodiment includes a container body 1 and a lid 2. As shown in FIGS. 4 and 5, the container body 1 is made of polypropylene formed in a substantially rectangular shape having an arcuate portion at a square corner portion, and has a bottomed shallow box having an opening 3 on the upper surface. It is formed in a shape.

  As shown in FIG. 6, a groove forming piece 6 is formed on the upper end portion 4 of the container body 1 via an extending portion 5 extending outward. The groove forming piece 6 is formed of an outer peripheral piece 7 and an inner peripheral piece 8, and a bottom surface portion 9 between the outer peripheral piece 7 and the inner peripheral piece 8. And the connection part 10 of the bottom face part 9 and the inner peripheral piece 8 is formed in thin shape.

Such a groove forming piece 6 is formed over substantially the entire circumference of the container body 1, and accordingly, the thin-walled continuous connecting portion 10 is also formed over substantially the entire circumference. Accordingly, the outer peripheral piece 7 and the bottom surface portion 9 of the groove forming piece 6 are configured so as to be divided from the inner peripheral piece 8 over the entire circumference via the connecting portion 10 as described later.

  The cross-sectional structure shown in FIG. 6 is a cross-sectional structure of the groove forming piece 6 formed over substantially the entire circumference as described above. The outer peripheral piece 7 and the bottom surface 9 of the groove forming piece 6 are connected to each other. In the part (B part of FIG. 4) used as the starting point when dividing from the inner periphery piece 8 via the installation part 10, and the square corner part (C part of FIG. 4) of the container main body 1 which has an arcuate part. The cross-sectional structure is different from that shown in FIG.

  FIG. 7 is a partially enlarged plan view of the portion serving as the dividing starting point, FIG. 8 is a partially enlarged plan view of a square corner portion of the container body, and FIG. 9 is a cross-sectional view taken along the line DD in FIG. 10 is a cross-sectional view taken along line EE in FIG. 7, FIG. 11 is a cross-sectional view taken along line FF in FIG. 7, and FIG. 12 is a cross-sectional view taken along line GG in FIG.

  As shown in FIG. 4, the part (B part) serving as the separation starting point is provided at a position close to one place (C part) of the square corner parts of the container body 1, and in that part, A tab 11 is formed as a starting point for separating the outer peripheral piece 7 and the bottom surface portion 9 from the inner peripheral piece 8 when the sealed container is released.

As shown in FIGS. 4, 5, 7, and 10, the knob 11 is formed in a substantially L-shaped cross section including a top plane 12 having a substantially trapezoidal shape and a side piece 13 having a substantially rectangular side surface. The bottom surface 6 is not formed between the side piece 13 of the knob 11 and the inner peripheral piece 8, and a space 14 is formed as shown in FIGS. The side piece 13 of the knob 11 is formed continuously and integrally with the outer peripheral piece 7 of the groove forming piece 6. Further, as shown in FIGS. 5 and 10, a large number of protrusions 15 are formed on the outside of the side piece 13 of the knob piece 11 to prevent slipping when the knob piece 11 is gripped.

As shown in FIGS. 7 and 10, a notch groove 16 is formed at a position adjacent to the end of the knob 11, and the notch 16 is formed by forming such a notch 16. 11 can be easily performed by separating the outer peripheral piece 7 and the bottom surface portion 9 from the inner peripheral piece 8.

Between the side piece 13 and the inner peripheral piece 8 of the knob piece 11, the space portion 14 is formed as described above, so that the bottom surface portion 9 does not exist at all, but the bottom surface portion close to the space portion 14. As shown in FIGS. 7 and 11, narrow through holes 17 are formed in two portions in the portion 9.

As shown in FIGS. 8 and 12, at the square corner portion of the container body 1, the elastic locking piece 18 is provided so as to project obliquely downward from a relatively upper portion of the outer peripheral piece 7. As will be described later, when the outer peripheral piece 24 of the lid body 2 is fitted into the groove portion 19 of the groove portion forming piece 6, the bullet locking piece 18 is pushed down by the outer peripheral piece 24 of the lid body 2. However, after the outer peripheral piece 24 of the lid body 2 is fitted, the outer peripheral piece 24 of the lid body 2 is prevented from coming out upward while being brought into contact with the outer peripheral piece 24 of the lid body 2 by the upward elastic biasing force. It has the function to do. Since the container main body 1 is made of polypropylene, the bullet locking piece 18 which is a part of the container main body 1 also has a moderate upward elastic biasing force, and further, the upward elastic emission. It has moderate flexibility that is easy to bend downward against the force.

A notch groove 20 is formed substantially at the center of the bullet locking piece 18. By forming such a notch groove 20, the flexibility of bending downward becomes good. As shown in FIG. 4, the bullet locking pieces 18 are formed at a total of eight places, as shown in FIG.

The bottom surface portion 6 is not formed between the outer peripheral piece 7 on which the elastic locking piece 18 protrudes and the inner peripheral piece 8, similarly to the place where the knob 11 is formed, A space 21 is formed as shown in FIGS. If this space portion 21 does not exist, it is difficult to demold after molding with a mold a structure in which the above-described elastic locking piece 18 projects inwardly on the outer peripheral piece 7. Therefore, this is due to the convenience of molding that facilitates demolding.

  The lid body 2 is also made of polypropylene like the container body 1 and is formed in a substantially rectangular plane shape having an arc-shaped portion at a square corner portion as shown in FIGS. 13 and 14. As shown in FIG. 15, the peripheral portion of the lid body 2 is connected to the inner peripheral piece 22, the extended portion 23 extending outward from the inner peripheral piece 22, and the extended portion 23. An outer peripheral piece 24 is formed, and the inner peripheral piece 22, the extended portion 23, and the groove portion 25 surrounded by the outer peripheral piece 24 are fitted into the upper end portion 4, the extended portion 5, and the inner peripheral piece 8 of the container body 1. It becomes a part to be done.

The outer peripheral piece 24 of the lid 2 is composed of a contact piece 26 that becomes a contact portion with the inner peripheral piece 8 of the container body 1 and an insertion piece 27 that becomes an insertion portion with respect to the groove portion 19 of the container body 1. At the lower end of the insertion piece 27, an engagement projection 28 is provided to project outward. The insertion piece 27 is formed so as to face slightly obliquely outward from the vertical, but the contact piece 26 is formed to face further obliquely outward than the insertion piece 27. The inclination angle of the contact piece 26 is substantially the same as the inclination angle of the upper portion 24a of the outer peripheral piece 24 of the container body 1, but the inclination angle of the contact piece 26 is set to be slightly larger. Yes.

This is because the groove portion 25 surrounded by the inner peripheral piece 22, the extended portion 23, and the outer peripheral piece 24 of the lid 2 is externally fitted into the upper end portion 4, the extended portion 5, and the inner peripheral piece 8 of the container body 1. Immediately after the insertion, that is, immediately after the insertion piece 27 of the lid 2 is inserted into the groove portion 19 of the container body 1, the contact piece 2 is slightly separated from the upper portion 24a of the outer peripheral piece 24 of the container body 1, After a so-called play gap 29 is formed and the insertion piece 27 is inserted into the groove portion 19 of the container body 1, the insertion piece 27 is pressed by the elastic urging force of the elastic locking piece 18, This is because the contact piece 2 is urged toward the outer peripheral piece 24 side of the container body 1 so that the contact piece 2 comes into contact with the outer peripheral piece 24.

  Then, the insertion piece 27 of the outer peripheral piece 24 of the lid body 2 as described above is inserted into the groove portion 19 of the groove portion forming piece 6 of the container body 1 so that the container body 1 and the lid body 2 are fitted. It becomes.

Thus, when inserting the insertion piece 27 of the lid body 2 into the groove portion 19 of the container main body 1, first, as shown in FIG. 16, at the lower end portion of the insertion piece 27 in which the engagement protrusion 28 is formed, The insertion piece 27 is inserted into the groove 19 while pushing down the bullet locking piece 18 against the bullet urging force of the bullet locking piece 18 projecting obliquely downward on the inside of the outer peripheral piece 7. .

  Immediately after the insertion piece 27 is inserted into the groove 19 against the bullet urging force of the bullet locking piece 18 in this way, the inclination angle of the contact piece 26 of the lid 2 is such that the container body 1 Since it is set to be slightly larger than the inclination angle of the upper portion 24a of the outer peripheral piece 24, a so-called play gap 29 is formed as shown in FIG.

  However, since the insertion piece 27 of the outer peripheral piece 24 is inserted into the groove portion 19 against the elastic urging force of the elastic locking piece 18, the elastic engagement force is not applied to the inserted insertion piece 27. The elastic urging force of the stop piece 18 acts to press the insertion piece 27 toward the inner peripheral piece 8 side of the container body 1 as shown in FIG.

Therefore, the contact piece 26 of the outer peripheral piece 24 that is slightly separated from the upper portion 24a of the outer peripheral piece 24 of the container body 1 through the gap 29 as described above comes into contact with the upper portion 24a of the outer peripheral piece 24. Thus, the gap 29 as described above is eliminated, and the insertion piece 27 is prevented from coming out of the groove portion 19, and as a result, the lid body 2 is preferably prevented from being detached from the container body.

Further, in this case, since the engaging protrusion 28 is formed at the lower end portion of the insertion piece 27, even if the insertion piece 27 tries to come out upward from the groove portion 19, the elastic force biased toward the insertion piece 27 side is provided. Since it engages with the lower end portion of the locking piece 18, the insertion piece 27 can be more reliably prevented from coming out of the groove portion 19. Therefore, in this state, the fitting state between the container body 1 and the lid body 2 is reliably maintained.

Next, when the lid body 2 is fitted in the container body 1 in a sealed state as described above, and then the lid body 2 is detached from the container body 1 and the container body 1 is opened, first, a tab piece 11 is gripped and pulled in the circumferential direction. Due to this tensile force, the continuous portion 10 between the inner peripheral piece 8 and the bottom surface portion 9 is divided. In this case, since the space part 14 is formed between the inner peripheral piece 8 and the side piece 13 of the knob piece 11, the division | segmentation by pulling of the knob piece 11 can be performed very easily.

  Then, as shown in FIG. 19, the outer peripheral piece 7 is peeled off in the circumferential direction to release the sealed state between the container body 1 and the lid body 2. In this way, the outer peripheral piece 7 is peeled off in the circumferential direction, so that the portion of the outer peripheral piece 7 projecting the elastic locking piece 18 that has pressed the insertion piece 27 of the lid 2 is also the inner peripheral piece. Therefore, as shown in FIG. 20, the engagement state of the insertion piece 27 and the engagement state with the engagement protrusion 28 by the elastic engagement piece 18 are released.

  When the outer peripheral piece 7 is peeled off in this way and the sealed state between the container body 1 and the lid body 2 is released, the lower end portion of the outer piece 24 of the lid body 2 on which the engagement protrusion 28 is formed is exposed to the outside. It will be naked.

  Accordingly, it is possible to grip the lower end portion of the outer peripheral piece 24 of the lid body 2 with a finger or the like. By lifting the lower end portion of the outer peripheral piece 24 of the lid body 2 gripped with a finger or the like, the lid as shown in FIG. The lid 2 can be detached from the container main body 1 while releasing the fitting state between the body 2 and the container main body 1.

In the above-described embodiment, the elastic locking pieces 18 are formed at two places at the square corners of the container main body 1 and a total of eight places in the entire container main body 1. The number is not limited to this embodiment, and for example, as shown in FIG. 22, the container body 1 may be formed at one place at a square corner portion and at a total of four places in the container body 1 as a whole.

  Moreover, in the said embodiment, with respect to the insertion piece 27 of the cover body 2 inserted in the groove part 19 by the elastic locking piece 18 protruding inwardly on the outer peripheral piece 7 of the above groove part formation piece 6 as described above. However, the means for applying the bullet urging force to the insertion piece 27 is not limited to the bullet locking piece 18 as described above. For example, a spring or the like can be applied. Further, such a spring is provided on the back side of the bullet locking piece 18 in order to increase the bullet biasing force of the bullet locking piece 18 as described above when the bullet biasing force is weak. It is also possible to provide it.

  Furthermore, in the above-described embodiment, the notch groove 20 is formed in the approximate center of the bullet locking piece 18, so that the flexibility that the bullet locking piece 18 bends downward is improved. However, it is not an essential condition for the present invention that the notched groove 20 is formed in such an elastic locking piece 18.

  Further, the shapes of the container body 1 and the lid body 2 are not limited to a substantially rectangular shape having an arcuate portion at a square corner portion as in the above embodiment. However, in the case of such a shape, the elastic locking piece is formed by forming the elastic locking piece as described above in the groove forming piece of the container body in the arcuate portion of the corner portion. It is possible to further improve the flexibility to resist the bullet urging force and the bullet urging force.

  Furthermore, in the said embodiment, although the container main body 1 and the cover body 2 were both comprised with the polypropylene, the material of the container main body 1 and the cover body 2 is not restricted to this, For example, you may be comprised with polyethylene, In short, it may be made of a synthetic resin. However, the bullet locking piece 18 as described above is provided with both a bullet urging force for locking the insertion piece 27 and a flexibility for bending against the bullet urging force. From the viewpoint, it is desirable that the container body 1 is made of polypropylene or polyethylene as described above.

  Furthermore, in the said embodiment, although the picking piece 11 of the cross-sectional substantially L shape which consists of the upper piece 12 and the side piece 13 was formed as a parting start part of the opening means of a container, the structure of a parting start part is such It is not limited to.

The front view of the airtight container of one Embodiment. FIG. FIG. 3 is a sectional view taken along line AA in FIG. 2. The top view of a container main body. The half cut sectional view of a container main part. The partial expanded sectional view of a container main body. The elements on larger scale which expand and show the B section of FIG. The elements on larger scale which expand and show the B section of FIG. The DD sectional view taken on the line of FIG. EE sectional view taken on the line of FIG. FF sectional view taken on the line of FIG. GG sectional drawing of FIG. The top view of a cover body. The half cut sectional view of a lid. The partial expanded sectional view of a cover body. The principal part expanded sectional view just before fitting a cover body with a container main body. The principal part expanded sectional view immediately after fitting a cover body with a container main body. The main part expanded sectional view of the state by which the insertion piece of the lid body was latched by the elastic locking piece after fitting the lid body to the container main body. The top view which shows operation which cancels | releases the sealing seal state of a container. The principal part expanded sectional view after cancelling | releasing the sealing seal state of a container. The principal part expanded sectional view which shows the state which removes a cover body from a container main body. The principal part enlarged plan view of the container main body of other embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Container main body 2 ... Cover body 3 ... Opening part 6 ... Groove part formation piece 7 ... Outer peripheral piece 8 ... Inner peripheral piece 18 ... Bullet-locking piece 19 ... Groove part 24 ... Outer peripheral piece

Claims (3)

In a sealed container made of synthetic resin comprising a container body (1) having an opening (3) on the upper surface and a lid (2) that can be fitted to the container body (1), the container body (1) A groove (19) is formed at the upper peripheral edge, and an outer peripheral piece (24) is formed at the peripheral edge of the lid (2) to cover the container body (1) (2). The outer peripheral piece (24) is inserted into the groove (19) at the time of fitting, and the outer peripheral piece (24) is formed on a part of the inner surface of the groove forming piece (6) forming the groove (19). ) Is inserted into the groove portion (19), the outer peripheral piece (24) can be inserted into the groove portion (19) against the elastic biasing force, and the outer peripheral piece (24) is inserted into the groove portion. (19) After being inserted into the ball, a bullet that can prevent the outer peripheral piece (24) from slipping out of the groove (19) by the bullet biasing force. Sealed container, characterized in that biasing means are provided. The bullet urging means is a bullet locking piece (18) projecting obliquely downward from the outer peripheral piece (7) of the groove forming piece (6) toward the inner peripheral piece (8). The sealed container as described.   The container main body (1) and the lid body (2) are formed in a substantially rectangular shape having an arc-shaped portion at a square corner portion, and the groove-forming piece (6 of the container main body (1) in the arc-shaped portion of the corner portion (6). 3) A sealed container according to claim 1 or 2, wherein an elastic locking piece (18) is formed.

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