JPH08282697A - Hermetically closed container fitted with lid opening preventing function - Google Patents

Abstract

PURPOSE: To provide a hermetically closed container not destructed or cracked and safe because not only a lid but also a body and soft and certainly hermetically closed so as not to be broken open. CONSTITUTION: A body 1 being a container main body and a lid 3 having the fitting edge piece 27 closely fitted to the erected mouth edge part 9 provided at the upper end part of the body 1 in a reversed state provided at the peripheral edge part thereof are formed from a soft or semihard plastic and an annular protruding piece 11 is provided at the lower end part of the erected mouth edge part 9 of the body to form an edge falling groove 12 in which the uppermost peripheral edge 29 as the reversal tip of the fitting edge piece 27 of the lid 3 falls. A tear-off groove 13 is formed at the protruding base end of the annular protruding piece 11 and a knob 15 for tearing off the piece 11 is vertically provided in a part of the outside thereof and the slit 17 reaching the tear-off groove is provided on one side of the knob 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a closed container with a lid-preventing function, which is made of plastic and is filled with processed food such as seafood and edible wild plants.

[0002]

2. Description of the Related Art An airtight container with a lid-preventing function is used to ensure the safety of food until it is opened by the user.
A container with a lid that is prevented from being opened unintentionally by another person in the distribution mechanism, and once opened, the lid can be opened without any trouble thereafter. Examples thereof include those described in Japanese Utility Model Laid-Open No. 7-9741 relating to this applicant.

The closed container having a lid opening preventing function described in the above publication comprises a body made of hard plastic and a lid made of soft plastic. The lid is attached to the upper end of the peripheral wall of the body over the entire circumference. In order to prevent the lid from coming off, an annular ridge is provided on the outer peripheral surface of the upper end of the body in two steps, and It is formed in a triangular cross section with a clearance angle downward, and the edge piece of the lid is formed with two upper and lower annular groove grooves that engage both annular protrusions, and for opening the lid, the upper annular groove A tab is provided so that the lower end of the edge piece can be cut along.

[0004]

According to the conventional closed container with a lid-opening preventing function as described above, since the body is made of hard plastic such as polystyrene, the edge of the lid must be opened as a procedure for opening the lid. Although it is easy to cut the piece along the hard surface, there is a risk that the body may be broken or cracked due to the impact from the material. Also,
Molding was also relatively difficult and costly.

The lid-opening prevention function depends on the engagement relationship between the upper and lower annular protrusions and the annular groove, but there is a risk that the exposed edge of the lid may be forcibly opened by inserting a pawl. In addition, the use of this two-stage engagement structure has a problem that a gap that hinders the sealing is likely to occur between the body and the lid.

The present invention has been made in view of the above circumstances.
Not only the lid but also the body is soft, so there is no danger of breaking or cracking, it is safe, and it is necessary to provide a closed container with a lid opening prevention function that is tightly closed so that it can not be pry open. Intended.

[0007]

In order to achieve the above object, the present invention has a body as a container body, and an attached edge portion which is tightly fitted to the peripheral edge portion of the body at the upper end of the body. A lid having a piece is formed of soft or semi-rigid plastic, respectively, and by projecting an annular projecting piece at the lower end portion of the standing mouth edge portion of the body, a lid edge portion piece of the lid is formed thereon. Forming an edging groove into which the outermost peripheral edge as the reversal destination falls, and forming a cutout groove for notching it at the protruding base end of the annular protrusion,
A knob for cutting off is hung vertically on a part of the outside, and a cut opening is formed on one side of the knob to reach the cutting groove to form a closed container with a lid opening preventing function.

[0008] In addition, a step portion is provided at the upper end of the body so that the rising edge portion projects outward, and a ridge is formed over the entire circumference on the lower surface of the lid corresponding to the step upper surface of the step portion. Furthermore, if a guide slope is formed on the inner peripheral surface above the step portion to guide the lid downward, and the introduction force causes the lid to come into close contact with the step upper surface of the step portion inside the body, it is possible to further achieve the purpose. It is valid.

[0009]

[Operation] When the lid-covered edge piece is pushed into the stand-up edge of the body with the lid on, the gap between the pieces will not only come into close contact, but also the edge of the attached edge piece will be Since it falls, in this state, it is not possible to pry it open by putting a finger or a nail on the edge of the lid. However, when the annular protruding piece forming the edging groove is cut out by the cutting groove, the outermost peripheral edge of the lid is exposed, so that the finger can be hung on the edge to open the lid.

When cutting out the annular projection, a knob is used, but since a cut is provided on one side,
Easy to cut. In addition, it can be seen that the ring-shaped protrusion has been removed so that it has already been opened.

[0011]

Embodiments of the present invention will now be described with reference to the drawings.

1 to 6 show an embodiment, in which a closed container with a lid-opening prevention function is a small container composed of a body 1 and a lid 3 each made of soft and inexpensive polypropylene. Of these, the body 1 is mainly provided with the lid opening device 5 for releasing the lid opening prevention function.

The body 1 is provided with a step portion 7 that projects outwardly around the entire circumference near the upper end, so that a standing mouth edge portion 9 is formed on the step portion 7, and the lower end of the outer peripheral surface of the standing mouth edge portion 9 is formed. Section L
A letter-shaped annular projecting piece 11 is provided so as to project, and a lid 3 is attached to the rising edge portion 9 above the annular projecting piece 11. Further, due to the shape of the annular projecting piece 11, the edging groove 12 for preventing the lid 3 from being turned is formed on the rim.

With respect to the lid opening device 5, a cutout groove 13 having an open bottom surface is provided at the base end of the annular projecting piece 11, and the cutout groove 13 is formed.
A knob 15 is projectingly provided on the annular projection 11 at one end so that the annular projection 11 can be cut along the tab 15, and the knob 15 is formed in a downward tongue shape. Further, in order to cut off the knob 15, the annular protrusion 11 is provided with a downwardly open type cutout 17 reaching the cutout groove 13 on one side of the knob 15, and further, a cutout 17 is provided to facilitate pulling out the knob 15. A guide groove 19 extending from the cutout groove 13 to the cutout groove 13 is provided on the back side of the knob 15.

A projection 21 having a V-shaped cross section is formed over the entire circumference on the lower surface of the lid surface wall 24 corresponding to the step upper surface of the step portion 7. Since the ridge 21 of the lid 3 is received on the step upper surface, a more reliable airtightness can be obtained in the relationship between the body 1 and the lid 3. In addition, a guide slope 23 having a clearance angle for guiding the lid 3 downward is provided on the inner peripheral surface of the base end portion of the standing edge 9 so that the lid 3 can prevent the lid 3 from reaching the step upper surface of the step portion 7 and the standing edge. It is pressed against the upper end surface of 9, and the lid 3 is prevented from coming out.

As a means for sealing and preventing escape, an overhanging portion 25 is provided at the upper end of the rising edge 9 to strengthen the close contact with the lid 3 at the upper end. Further, by doing so, it becomes easy to open the cover after releasing the lid opening prevention function.

The lid 3 is a shallow container shape having a lid surface wall 25 so as to hang on the stepped upper surface of the stepped portion 7 of the body 1, and has a reverse cross-section U which is in close contact with the rising edge portion 9 of the body 1 at its peripheral portion. It has a V-shaped adhered edge piece 27. And, as mentioned above, the body 1
In relation to, the step upper surface of the stepped portion 7 and the guide slope 2
3. It has a contact portion with respect to the rising edge portion 9. Further, the outermost lower end of the adhered edge piece 27 is formed with an outermost peripheral edge 29 which is housed in the edging groove 12 so as to project outward.

In the distribution mechanism, the outermost edge 29 of the lid 3 is thus depressed in the edging groove 12 of the body 1 (states shown in FIGS. 1, 2, 3, 4, and 5). It is not possible to hang fingertips or nails on the outermost peripheral edge 29 to open the lid 3, which prevents the risk of opening. However, when the annular projection 11 is cut off to expose the outermost peripheral edge 29 of the lid 3 as shown in FIG. 6, the lid 3 can be opened by hooking a finger there.

FIG. 7 shows another embodiment. In this case, the lid surface wall 25 is positioned relatively higher, and the periphery has annular legs 31 which are in close contact with the step upper surface of the stepped portion 7. .
In this case as well, the lid 3 can be opened by cutting the annular projection 11 by the cutting groove 13. In this embodiment, the annular leg 31 of the lid 3 is formed thicker than the other lid surface wall 25 of the lid 3. This is because, when the annular leg is thin, it is easy for the annular leg to be deformed inward when the lid molding is performed, and in that case, the inner wall of the body 1 and the lid 3 can be easily removed.
This is because the close contact with the annular leg 31 cannot be obtained, which may cause a problem in hermeticity.

[0020]

As described above, the closed container with the lid opening preventing function of the present invention has the following excellent effects.

Since not only the lid but also the body is made of soft or semi-rigid plastic, there is no trouble of breaking or cracking in the distribution mechanism in which the food is packaged, and it can be provided at a low cost and can be opened. Since the lid prevention function prevents the package from being opened unintentionally, food can be safely packaged and delivered to consumers.

With respect to the lid opening prevention function, the lid cannot be pry open from the edge because the outermost peripheral edge of the lid has fallen into the edging groove formed by the annular protrusion provided on the body. But,
Since the annular protruding piece can be cut out from the material of the body along the cutout groove, the opening can be performed by cutting out the annular protruding piece. Further, although the annular protruding piece can be easily cut off, since the opened state can be known by the cutting out, this point is also suitable for safe packaging of food.

A step portion is provided at the upper end of the body so that the rising edge portion projects outward, and the lower surface of the lid surface wall of the lid or the lower surface of the annular leg corresponding to the step upper surface of the step portion is provided over the entire circumference. When the ridge is formed (claim 2), the lid is more firmly attached to the body, which is more suitable for safe packaging of food.

[Brief description of drawings]

FIG. 1 is a perspective sectional view showing a main part of a closed container in a state where a lid opening prevention function is provided.

FIG. 2 is a front view showing the closed container with the lid opening prevention function.

FIG. 3 is a bottom view showing the closed container with the lid opening prevention function.

FIG. 4 is a cross-sectional view taken along the line AA of FIG.

5 is a cross-sectional view taken along the line BB of FIG.

FIG. 6 is a cross-sectional view of an essential part of a portion corresponding to FIG. 4, showing a state in which the lid opening preventing function is omitted.

FIG. 7 is a sectional view corresponding to FIG. 4 showing another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 3 Lid 7 Stepped portion 9 Standing edge portion 11 Annular protrusion piece 12 Edge cut groove 13 Cutout groove 15 Picking 17 Cut portion 21 Projection 23 Guide slope 27 Ended edge piece 29 End edge

Claims (2)

[Claims] 1. A body as a container body, and a lid having a to-be-attached edge piece which is fitted to the upper edge of the body at the upper edge of the body so as to be closely fitted to the body are formed of soft or semi-rigid plastic, respectively. By projecting an annular projecting piece at the lower end of the standing mouth edge of the body, an edging groove is formed on which the outermost peripheral edge of the lid-attached edge piece as a tip of inversion falls. A cutout groove is formed in the protruding base end of the projection to cut it out, a knob for cutting off is provided on a part of the outer side, and a cutout leading to the cutout groove is provided on one side of the knob. An airtight container with a lid opening prevention function characterized by being provided. 2. A step portion is provided at the upper end of the body so that the upright edge portion projects outward, and a protrusion is formed over the entire circumference on the lower surface of the lid corresponding to the step upper surface of the step portion. , A guide slope is formed on the inner peripheral surface above the step portion to guide the lid downward, and the introduction force causes the lid to be in close contact with the step upper surface of the step portion inside the body. Item 1. A closed container with a lid opening prevention function according to item 1.