JP3976538B2 - Partially openable fitting container - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a both-fitting container that can be partially opened.
[0002]
[Prior art]
A fitting container formed with a relatively thin synthetic resin sheet is roughly classified into an inner fitting, an outer fitting, and both fittings depending on the fitting form of the lid to the container body. In order to partially open, it is necessary to bend a part of the lid. However, because of the structure of the lid, the skirt portion or the peripheral wall is provided substantially perpendicularly from the peripheral edge portion of the top wall. Therefore, when the lid is bent, the skirt portion or the peripheral wall may be damaged.
[0003]
[Problems of the Invention]
Thus, for example, Japanese Patent No. 3028231 discloses a groove provided on the periphery of the lid of the outer fitting container and the liquid is discharged from the groove. However, since this container is an outer fitting container, the fitting force between the lid and the container main body is small, and the lid is easily removed by impact. Especially when storing contents containing liquid, the lid is heated to the container main body. It is normal to seal, and in order to discharge the liquid, there is a problem that if the lid is partially opened, the lid of the part is folded and cannot be restored or damaged, resulting in poor sealing performance . The same applies to both fitting containers.
[0004]
In order to solve the above problem, the present applicant has proposed a fitting container in which a groove is provided on the inner surface of the top wall of the lid and the lid can be bent along this groove (Japanese Patent Application No. 2000-255022). issue). However, if a groove is provided on the inner surface of the top wall, a protrusion is formed on the outer surface of the top wall, which causes a problem that becomes an obstacle when a label is attached to the top wall or stacked.
[0005]
Therefore, an object of the present invention is to allow partial opening by attaching a label to the top wall of the lid or by easily folding the lid without obstructing the stacking.
[0006]
[Means for solving problems]
In order to solve the above-mentioned problem, the present invention provides a hollow ridge on the entire outer periphery of the opening of the container body, a concave ridge that fits the ridge on the entire outer periphery of the top wall of the lid, A groove is formed on the outer surface of the top wall of the lid at a predetermined distance from the periphery of the lid along a straight line connecting the two points on the inner wall of the concave stripe, and the lid can be bent along this groove to be flexible and restored. a two mating container made of thermoplastic synthetic resin sheet having a sex, a central portion in the cross-sectional shape Gaho URN W-shape of the groove has become a ridge, before Ki突 conditions is of its length does not protrude from the top wall of the lid in an intermediate portion, a notch is formed on the inner wall of concave of the lid by both end surfaces of the protrusions, the outer wall of concave of the lid in response to this notch A configuration with notches was used.
[0007]
Better to keep the notch of the cross-sectional shape almost triangular outer wall of the concave before Kifuta.
[0008]
[Embodiment]
Embodiments of the present invention will be described below with reference to the accompanying drawings. As shown in FIG. 1, the fitting container of the present invention includes a container body 10 and a lid 20. Each of them is a thermoplastic synthetic resin sheet having a thickness of about 0.2 to 5.0 mm formed by vacuum forming, pressure forming or true pressure forming, and as a specific material, it is relatively flexible and highly recoverable. A rich amorphous polyester, polypropylene, polystyrene resin or the like is preferable.
[0009]
The container body 10 has a bottom wall 11 and a peripheral wall 12 rising from the peripheral edge thereof, and a narrow step portion 13 is provided on the entire periphery of the upper end opening portion 12a of the peripheral wall 12. The inner wall 14a of the strip 14 rises, and the outer wall 14b hangs down through the flat portion. These inner and outer walls 14a and 14b are tapered so that the distance between them becomes narrower downward. A tab 15 is provided on a part of the outer wall 14b.
[0010]
As shown in FIGS. 1, 2 and 3, the lid 20 is provided with a recess 24 on the entire periphery of the top wall 21, and the inner wall 24a and the outer wall 24b of the recess 24 are located below. It forms in the taper shape which becomes narrow toward the direction, and it fits and crimps | bonds to the protruding item | line 14 of the said container main body 10. As shown in FIG. And the groove | channel 22 is provided in the top wall 21 along the straight line which connects between two points of the inner wall 24a of the said groove 24. As shown in FIG. Cross-sectional shape of the groove 22 is a good thing in which a protrusion 22a at the center in almost W-shape. As shown in FIG. 3, both ends 22c of the protrusion 22a reach the upper edge of the inner wall 24a, that is, the flat portion of the bottom surface of the recess 24, and are notched in the inner wall 24a by the end surface of the protrusion 22a. Is forming.
[0011]
A pair of notches 24 c and 24 c are provided on the outer wall 24 b of the concave strip 24 corresponding to the extended lines at both ends of the groove 22. The shapes of the notches 24c and 24c may be substantially triangular, semi-circular, semi-oval or the like. In addition, the code | symbol 25 of FIG. 2 shows a tab. The tab 25 is preferably provided in parallel with the groove 22.
[0012]
When opening the fitting container as described above, the tab 25 of the lid 20 corresponding to the tab 15 of the container main body 10 is lifted with a finger, and the concave stripe 24 of the lid 20 and the convex stripe 14 of the container main body 10 are engaged. When the lid 20 is further lifted while unwinding, as shown in FIG. 4, the lid 20 is bent along the groove 22 to form a partial opening. At this time, on the inner and outer walls 24a and 24b of the recess 24 of the lid 20, corresponding to both ends of the groove 22, notches (notches on the inner wall 24a) are formed by both ends of the protrusions 22a. If it is set, it will bend easily without obstructing the bending, and the recess 24 will not be damaged. Part of the contents and the liquid component can be discharged from this partial opening. In addition, it can be easily resealed after discharge. In addition, what the groove | channel 22 is substantially W-shaped and formed the protrusion 22a in the center WHEREIN: Since the inner surface side of the protrusion 22a becomes the groove | channel 22b, bending is performed more easily.
[0013]
The planar shape of the lid 20 of the fitting container according to the present invention is not limited to the circular shape as shown in FIG. Other polygonal, elliptical, or irregularly shaped containers may be used. Further, the number of grooves 22 provided on the outer surface of the top wall 21 is not limited to one and may be two or more.
[0014]
【The invention's effect】
According to the present invention, as described above, since the groove is provided on the outer surface of the top wall of the lid at a predetermined distance from the periphery of the lid of both fitting containers, the lid is easily bent along the groove. Therefore, the partial opening can be easily formed, and the liquid component of the contents does not scatter during opening, and can be easily resealed without impairing the sealing performance. Further, since the groove, the top wall of the lid, there is no protrusion out of the way ing of joining and stacking labels.
[0015]
Furthermore, if a notch is formed in the inner and outer walls of the lid corresponding to the groove, the flexibility can be further improved.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing an example of a fitting container according to the present invention. FIG. 2 is a plan view showing a lid. FIG. 3 is a partially enlarged perspective view of the lid. Longitudinal sectional view 【Explanation of symbols】
DESCRIPTION OF SYMBOLS 10 Container main body 11 Bottom wall 12 Peripheral wall 12a Opening part 13 Step part 14 Rib 14a Inner side wall 14b Outer side wall 15 Tab 20 Lid 21 Top wall 22 Groove 22a Groove 22b Groove 22b Groove 22c Both ends of ridge 24 Convex 24a Inside Wall 24b Outer wall 24c Notch 25 Tab

Claims (2)

A hollow ridge is provided on the entire outer periphery of the opening of the container main body, a ridge that fits with the ridge is provided on the entire outer periphery of the top wall of the lid, and along a straight line connecting two points of the inner wall of the groove. This is a both-fitting container made of a flexible and resilient thermoplastic synthetic resin sheet that has a groove formed on the outer surface of the top wall at a predetermined distance from the periphery of the lid, and the lid can be bent along the groove. Te, wherein which the central portion is turned ridge in cross section Gaho URN W-shaped groove, before Ki突 Article does not protrude from the top wall of the lid in an intermediate portion of its length direction, of the protrusion A partially openable fitting container characterized in that a notch is formed in the inner side wall of the concave groove of the lid by both end surfaces, and a notch is provided in the outer wall of the concave groove of the lid corresponding to the notch. . The fitting container according to claim 1, wherein a cross-sectional shape of the notch in the outer wall of the recess is substantially triangular .

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