JPH0728087U - Egg container made of plastic - Google Patents

Abstract

(57) [Summary] [Purpose] Accurately fold the container body and lid in half so that they can be easily opened and closed with their fingertips even though they can be kept in a completely tightly sealed state. . [Structure] Opening flanges (11a) (11b) having a substantially rectangular contour are correspondingly extended from a container body (A) and a lid (B), and one long side thereof is used as an opening / closing hinge (12).
The container body (A) and the lid body (B) are pivotally supported so as to be bendable, and the other long side is sealed with a container body (A) and the lid body (B) by heat-sealing or a staple. 1
In the egg container made of plastic as 3), an intermediate perforation (20) for biasing a half-fold and an intermediate perforation (20) substantially along the folding center line (O-O) of the opening / closing hinge (12). A total of three lines were engraved with both side perforations (21) for stripping off.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a plastic egg container used in the distribution process.

[0002]

[Prior art]

 Generally, this seed egg container is vacuum-formed as a consumable item from a so-called elastic thin-walled (about 0.1 to 0.2 mm) transparent plastic sheet material. Due to its structure, the container body and lid are continuously integrated. However, it is equipped with opening flanges of roughly rectangular contours that correspond to each other, and a plurality of egg storage recesses (usually 10 to 12 in total) that are similarly scattered, and one long side of the opening flange is It does not have an opening / closing hinge for folding, and the other long side that remains is sealed with a heat seal or a staple in its closed state.

[0003] Moreover, since the sealing is usually performed by an automatic mechanical force so as not to cause an accidental opening in the distribution process and an egg rupture accident, it is usually consumed by the general consumer. It is difficult for a person's housewife to open it quickly, safely and beautifully with his fingertips, and it often causes an egg-breaking accident.

As measures against such a problem, Japanese Patent Publication No. 58-52903 and Japanese Patent Application Laid-Open No. 57-77440 (Japanese Utility Model Publication No. 58-143358) are already known.

[0005]

[Problems to be solved by the device]

 However, as in the former case, in which the filamentous material (5) such as a kite thread is attached to the inner surface of the bent portion (4), the lid portion (1) and the body portion (2) are completely adhered and sealed. It cannot be kept in a state, and both ends in the longitudinal direction of the bent portion (4) are necessarily opened, and insects such as flies enter the inside of the container from there. Therefore, it is not preferable for over-the-counter sales as an egg container. It can be said that this is exactly the same even if the thick projection (11) instead of the filament (5) is projected to the center of the bent portion (4).

Further, in mass production of this type of container, the filaments (5) should be attached by automatic mechanical force, but in that case, if they are not arranged on the longitudinal center line of the bent portion (4), The lid part (1) and the body part (2) cannot be aligned in an accurate half-folded state, and the opposite side flanges facing the bent part (4) are displaced. Then, when the opposite side flanges are automatically heat-sealed by the high-frequency welding machine, there is a possibility that the sealing failure may occur.

Further, since the filamentous member (5) is longer than the bent portion (4) and the grip holding portion (8) is projected from the end of the filamentous member (5), if it is erroneously pinched, However, there is a concern that the container may be opened unintentionally, causing an egg rupture accident during the distribution process and over-the-counter sales.

In any case, since the special filamentous material (5) having a larger tensile strength than the bent portion (4) and the structure requiring the attachment thereof, the mass production effect is still maximized. In addition to being unable to wait, the lint will hinder the regeneration of this type of plastic container.

Since this kind of container is vacuum-formed from a plastic sheet material, a thick ridge (11) instead of the above thread (5) is attached to the center of the bent portion (4). It is not possible to form locally overhangs, and even if it is possible, it can be said that the production cost is increased.

On the other hand, the latter configuration is advantageous in mass production because it does not require attachment to the special filament (5) and the bent portion (4) as described above. , The total of the two perforations (5) (5 ') is cut, and when the lid part (1) and the body part (2) are bent, both perforations (5) (5') are bent. As shown in Fig. 14, the zone (W) sectioned by) stands up in the flat, so that both ends in the longitudinal direction of the above-mentioned bent portion (4) necessarily have triangular openings. Will be done. As a result of the lid portion (1) and the body portion (2) not being kept in a completely tightly sealed state, the same problem as in Japanese Patent Publication No. 58-52903 arises.

Further, since the two perforations (5) and (5 ′) in total are neither arranged nor installed on the longitudinal center line of the bent portion (4), so to speak, either one of the eccentric perforations is formed. The lid part (1) and the body part (2) are bent from the eyes (5) and (5 '), and the opposite side flanges facing the bent part (4) have a certain amount as shown in FIG. The position is shifted by (L). As a result of the lid portion (1) and the body portion (2) not being aligned in the correct half-folded state, there is a possibility that a sealing failure may occur. This is also a problem that occurs when the perforations (5) and (5 ') have different strengths due to cuts or the pitches between them are not uniform.

Further, in the structure in which the total of two perforations (5) and (5 ′) are cut into the bent portion (4), the perforations (5) and (5 ′) are divided. In combination with the fact that the zone (W) stands up in the flat, it is difficult to put a fingertip on the end portion in the longitudinal direction, and the strip cannot be quickly and smoothly stripped and opened. It is still inconvenient because you have to insert a piece of stick, turn up the end a little, and then pinch this and peel it off.

[0013]

[Means for Solving the Problems]

 The present invention intends to improve such problems, and for that purpose, a container body integrally formed of plastic material and a lid body are provided with opening flanges each having a substantially rectangular contour that mate with each other. One of the long sides is used as an opening / closing hinge to pivotably support the container body and the lid, and the other long side facing the opening / closing hinge is used to seal the container body and the lid with a heat seal or a staple. In the egg container that serves as a stop, a total of three rows of intermediate perforations along the folding center line of the opening / closing hinge and both side perforations sandwiching the intermediate perforations, in total, are engraved substantially in parallel. It is a feature.

[0014]

[Action]

 According to the above configuration of the present invention, one semi-folding biasing intermediate perforation line is formed substantially along the bending center line of the opening / closing hinge that pivotally supports the container body and the lid. Therefore, the container body and the lid body can be accurately half-folded by themselves, and both ends of the opening / closing hinge in the longitudinal direction are not opened.

Since the container body and the lid body are kept in a completely sealed state in which the container body and the lid body are aligned and adhered to each other from the intermediate perforations, insects such as flies enter the egg container or the opening facing the opening / closing hinge. There is no risk of a defective seal between flanges.

Furthermore, since both side perforations for peeling, which are substantially parallel to the intermediate perforations, are engraved so as to sandwich the intermediate perforations, the container body and the lid body are in the above-mentioned close contact state. In addition to the fact that it is maintained at the same time, the band defined by both side perforations can be reliably pinched by the fingertips from the end in the longitudinal direction of the opening / closing hinge, and can be smoothly and quickly peeled off. Therefore, it is remarkably excellent in opening operability for general consumers.

[0017]

【Example】

 Hereinafter, the specific configuration of the present invention will be described in detail with reference to the drawings. In FIGS. 1 to 5 showing the egg container as a whole, (A) is a container body, and (B) is a lid thereof. The thin, transparent thermoplastic plastic sheet material is formed into a continuous and integral body by means such as vacuum forming.

The container body (A) and the lid body (B) are provided with projecting opening flanges (11a) and (11b) having a substantially rectangular contour that will be held together when the lids are closed. One of the long sides of (11a) and (11b) is pivotably supported as an opening / closing hinge (12), and the other long side facing the opening / closing hinge (12) is the sealing portion (13). ), The container body (A) is fixed and maintained in the closed state.

As the sealing portion (13), heat sealing by a rotary sealer (high-frequency welding machine) is shown in the example of the drawing, but a staple needle, a sticking thread or the like should be adopted instead. There is also a possibility.

A plurality of (14a) and (14b) are formed in the container body (A) and the lid (B) as an overall lattice arrangement in which each is scattered (10 in total in the illustrated example). ), Which is a recess for receiving eggs and rises in the opposite vertical directions from the planes of the opening flanges (11a) and (11b). Encapsulate well.

In that case, as is clear from FIGS. 4 and 5, the egg housing recess (14 a) on the container body (A) side is more than the egg housing recess (14 b) on the lid (B) side. , Standing slightly taller, the egg (M) is safely escaped from its damage, as the egg (M) moves away from the grounding surface of the container itself. (15a) and (15b) are reinforcing ribs that are lined up in the partition wall of the egg storage recesses (14a) and (14b) as convex and concave lines in the vertical direction. Has been given.

(16a) and (16b) are located between the adjacent egg-housing recesses (14a) and (14b) at a mid-height position rising from the plane of the opening flanges (11a) and (11b). Partition ribs that connect together in the vertical and horizontal directions of the bottom view, whereby the entire egg storage recesses (14a) (14b) are divided into the above-mentioned lattice arrangement state, and the contact between adjacent eggs To prevent it.

The partition ribs (16a) and (16b) extend in the vertical and horizontal directions while having a strip shape of a certain width when viewed from the flat / bottom surface, but as described above, on the container body (A) side. The partition ribs (16a) () of the egg storage recess (14a) and the egg storage recess (14b) on the side of the lid (B) have different rising heights. The band width of 16b) is narrow on the container body (A) side and wide on the lid body (B) side.

(17) is a fitting protrusion raised from either the container body (A) or the lid body (B) at the vertical and horizontal intersections of the partition ribs (16a) and (16b), ) Is a fitting concave groove that is also formed corresponding to the other, and when the lid is closed, they fit properly with each other to prevent misalignment between the container body (A) and the lid body (B). ing.

Further, (19a) and (19b) are concavities and convexities provided on both short sides of the above-mentioned opening flanges (11a) and (11b) as an at random random scattered distribution state, and the container body (A) and the lid. While keeping the body (B) in close contact, it also prevents the generation of static electricity.

That is, since the egg container is extremely thin and is charged with static electricity, when the container body (A) and the lid body (B) are stacked as shown in FIG. It is difficult to surely and quickly separate the containers one by one because the adjacent ones of the containers are intimately adhered to each other over the entire surface and the transparency is also present. However, the unevenness (19a) (19b) is formed. By doing so, the difficulty can be eliminated.

Further, (20) is an intermediate perforation for urging the container body (A) and the lid body (B) to be half-folded. The hinge (12) is engraved substantially along the bending center line (O-O). The container body (A) and the lid (B) are defined so that they can be accurately half-folded around the middle perforation (20) of the one line, and the opening flanges (11a) (11b) are opened and closed by the hinges. The other long side facing (12) is also kept in alignment with each other without misalignment.

Reference numeral (21) is a pair of peeling side perforations that sandwich the above-mentioned intermediate perforation (20), and is also formed along the longitudinal direction of the opening / closing hinge (12) with the intermediate perforation (20). It is carved almost in parallel. Then, the band (W1) divided by the both side perforations (21) is stripped as shown by the chain line in FIG. 1 to disassemble the container body (A) and the lid body (B). You can open it as you would.

In that case, it is preferable that both side perforations (21) are installed in parallel from the intermediate perforation (20) at substantially equal intervals (D). Then, in the closed state, both side perforations (21) are aligned and extend substantially on the same line, so that the peeling operation from now on can be performed more smoothly and reliably. It

Further, as suggested from the first modified embodiment of FIG. 8 corresponding to FIG. 7, the intermediate perforation (20) for biasing the half-fold and the side perforations (21) for peeling off are formed. By engraving each other in a zigzag arrangement or other dotted line state that changes phase, while allowing the above-mentioned half-folding action and peeling operation, it is possible to cause accidental disassembly and egg breaking accident in the distribution process. It is desirable to reinforce it so that it does not exist.

FIG. 9 also shows a second modified example, in which the intermediate perforation (20) is set to a dotted line state of the fine pitch (P1), and both side perforations (21) are made to correspond to this. By engraving each with a relatively rough pitch (P2) in a dotted line, the container body (A) and the lid body (B) are inevitably half-folded from the intermediate perforation (20). It is set to be possible.

As is apparent from the third modified embodiment of FIG. 10, guide cutouts of substantially V-shape when viewed from the flat / bottom surface of the egg container are provided at both ends in the longitudinal direction of both side perforations (21). If (22) is added, it is possible to hang the fingertip on it stably and to perform the stripping operation of the band (W1) divided by the both side perforations (21) more smoothly. . The stripping guide notch (22) may be provided only at one longitudinal end of both side perforations (21).

Further, FIG. 11 shows a fourth modified embodiment in which a guide display (23) which can be read from the outside is provided in a band (W1) divided by both side perforations (21) due to its constitution. It is color printed. According to this, since the egg container is transparent, it is difficult to visually check the engraved state of the perforations (20) (21), but the guide display (23) of the colored color makes it easy to see the peeling point. You can know

In that case, if the colored color of the guide display (23) is changed differently depending on the size and type of the egg (M) to be housed, the colored color is changed to, for example, a container containing a large egg. It is even more effective in that it can be clearly distinguished from the container containing small eggs.

The guide display (23) has a narrow width defined by one of the side perforations (21) and the intermediate perforation (20) as shown in the fifth modification of FIG. It is also conceivable to perform color printing in a wide band (W2).

[0036]

[Effect of device]

 As described above, in the present invention, the container main body (A) and the lid body (B) integrally molded from plastic material are respectively overhanging the opening flanges (11a) (11b) of substantially rectangular contours that mutually engage each other. One of the long sides is used as an opening / closing hinge (12) to pivotally support the container body (A) and the lid (B) in a bendable manner, and the other long side facing the opening / closing hinge (12) is heat-sealed. In an egg container that serves as a sealing portion (13) between the container body (A) and the lid body (B) with a needle or staple needle, the opening / closing hinge (12) extends substantially along the center line (O-O) of the fold. Since the intermediate perforations (20) and the side perforations (21) sandwiching the intermediate perforations (20) in total, three lines are engraved substantially in parallel, the problems of the prior art described at the beginning. There is an effect that can be surely improved

That is, as shown in FIG. 13, the operation of accommodating eggs (M) in the egg container is such that the egg container is placed on the belt conveyor (25) additionally provided with the back guide rail plate (24). With a set-up in the unfolded state, the front side of the belt conveyor (25) moves up and down as shown by the arrow (F) during conveyance in one direction along the automatic conveyance line by a vacuum suction plate (not shown). The plurality of eggs (M) adsorbed at the same time are accommodated so as to be dropped into the egg accommodation recess (14a) of the container body (A).

After the container body (A) is accommodated, the lid body (B) is moved by the narrow bent portion (24a) of the rear guide rail plate (24) in the process of being continuously conveyed. When the lid is pressed and urged in a bent shape toward (A) and the lid is kept closed, the jointed opening flanges (11a) (11b) are automatically heat-sealed by the rotary sealer (26). It is a customary practice.

In this respect, according to the above configuration of the present invention, the opening / closing hinge (12) pivotally supporting the container body (A) and the lid body (B) is substantially along the bending center line (O-O). Since the intermediate perforation (20) for biasing the half-fold is engraved, the container body (A) and the lid (B) are cut from the intermediate perforation (20) during the automatic transfer process. ) Can be exactly folded in half.

[0040] As a result of keeping the container body (A) and the lid body (B) in close contact with each other around the intermediate perforation (20) as a whole, as a result, insects such as flies are inside the egg container. Not only does it not enter, but the opening flanges (11a) (11b) are not misaligned and can be maintained in an orderly manner, which may cause a seal failure due to the rotary sealer (26). Nor.

Further, a pair of peeling side perforations (21) sandwiching the intermediate perforation (20) are engraved in a state of being arranged substantially parallel to the intermediate perforation (20). Along with the fact that the main body (A) and the lid body (B) are aligned in the tightly sealed state as described above, the zone (W1) partitioned by both side perforations (21) is divided into It can be peeled off smoothly and securely from only the fingertips only with a fingertip, which is extremely convenient for ordinary consumer housewives.

In particular, if the structure of claim 2 is adopted, the stripping and unsealing operation in a general household and the half-folding operation in the automatic mechanical egg storage process can be smoothly performed, but the distribution This has the effect of preventing unintentional opening by natural external force in the process, and eventually preventing splintering accidents.

If the configuration of claim 3 is adopted, it is possible to quickly and surely perform half folding for a total of three perforations (20) and (21) from the intermediate perforations (20). This has the effect of preventing the possibility of accidental bending from both side perforations (21).

Further, if the construction of claim 4 is adopted, since both side perforations (21) for peeling are located on substantially the same line in the half-folded closed lid state of the egg container, The zone (W1) divided by the both side perforations (21) can be more smoothly and orderly peeled off and opened while keeping the aligned half-fold polymerization state.

If the structure of claim 5 is adopted, the above-mentioned stripping operation can be performed more smoothly by the guide notches (22) provided at one end or both ends of the side perforation (21). But.

Further, if the structure of claim 6 is adopted, the peeling point can be more clearly known by the guide display (23) of the coloring color, and the egg (M ) Is intentionally changed depending on the size and type, so that it will be clear from now on, for example, the distinction between a large egg container and a small egg container.

The above-mentioned three perforations (20) and (21) in total can be engraved at the same time by a press machine or the like for manufacturing the egg container, and the necessary constitution is remarkably simple. Therefore, it can be said that this is a practical idea that can be expected to maximize the effect of mass production.

[Brief description of drawings]

FIG. 1 is a perspective view showing a closed state of an egg container according to the present invention.

FIG. 2 is a perspective view showing a developed state of FIG.

FIG. 3 is a plan view of the same deployed state.

FIG. 4 is an enlarged side view of FIG.

5 is an enlarged cross-sectional view taken along the line 5-5 of FIG.

FIG. 6 is a cross-sectional view showing a developed and stacked state of egg containers.

FIG. 7 is an enlarged plan view showing an opening / closing hinge portion of FIG. 3 in an extracted manner.

8 is an enlarged plan view showing a first modified embodiment corresponding to FIG. 7. FIG.

FIG. 9 is an enlarged plan view showing a second modified example of the same.

FIG. 10 is an enlarged plan view showing a third modified example.

FIG. 11 is an enlarged plan view showing a fourth modified example.

FIG. 12 is an enlarged plan view showing a fifth modification.

FIG. 13 is an explanatory diagram showing a step of storing eggs.

FIG. 14 is a partial perspective view showing a closed state of a conventional product.

FIG. 15 is a side view showing a state in which the opening flanges are displaced from each other.

[Explanation of symbols]

 (11a) -Opening flange (11b) -Opening flange (12) -Opening / closing hinge (13) -Sealing part (20) -Intermediate perforation (21) -Side perforation (22) -Guide notch (23) -Guide Display (A) -Container body (B) -Lid body (D) -Interval distance (M) -Egg (P1) -Interval pitch (P2) -Interval pitch (W1) -Band (W2) -Band (OO) ) ・ Folding center line

Claims (6)

[Scope of utility model registration request] 1. A container main body (A) and a lid body (B) integrally molded from a plastic material are respectively provided with opening flanges (11a) (11b) having substantially rectangular contours, which are mutually fitted, and one long side thereof. Is used as an opening / closing hinge (12) to pivotally support the container body (A) and the lid (B) in a bendable manner, and the other long side facing the opening / closing hinge (12) is provided with a heat seal or a staple. In an egg container formed as a sealing portion (13) between a container body (A) and a lid body (B), the opening / closing hinge (12) is substantially bent at a center line (O-).
O) A total of 3 intermediate perforations (20) along the top and both side perforations (21) sandwiching the intermediate perforations (20).
An egg container made of plastic, in which the strips are carved in parallel. 2. The plastic according to claim 1, wherein the intermediate perforation (20) and the both side perforations (21) are engraved in a zigzag arrangement with respect to each other or in other dotted line state in which the phase is changed. Made egg container. 3. The plastic egg container according to claim 1, wherein the intermediate perforations (20) are engraved in the pitch (P1) which is finer than the side perforations (21). 4. The egg container made of plastic according to claim 1, wherein both side perforations (21) are juxtaposed at a substantially equal distance (D) from the intermediate perforations (20). 5. A stripping guide notch (22) having a substantially V-shape when viewed from the flat or bottom is provided at one end or both ends in the longitudinal direction of both side perforations (21). The plastic egg container according to claim 1. 6. A wide band (W1) defined by both side perforations (21), or a narrow band (W defined by either one of them and an intermediate perforation (20).
The plastic egg container according to claim 1, wherein a guide display (23) having a different coloring color is printed on (2) according to the size and type of the egg (M) to be stored.