JP2007216980A - Container lid - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a container lid which has a structure that prevents intentional opening of the container lid for tampering, etc., at the stage of distribution once the lid has been fitted on a container body, has a superior alteration preventive function of making a trace of opening recognizable, and enables a stable vertical stackability of a plurality of container lids. <P>SOLUTION: The container lid A is made of a synthetic resin material, and has a top board 1, a side wall 2, and a stack rib 7 projecting out of the side wall 2. The side wall 2 forms first and second thin-walled portions 5 and 51 that facilitate the separation of an upper wall 2a from a lower wall 2b, and the lower wall 2b has a locking piece 3 projecting slantly upward inside the lower wall 2b and a separation tab 6 projecting outside the lower wall 2b. The lower wall 2b can be separated freely together with the locking piece 3 from the upper wall 2a. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention mainly relates to a lid of a container containing an item to be poured such as ice cream or yogurt.

As a paper container in which the container main body and the lid are locked to prevent tampering after packaging, a reinforcing portion is provided on the upper outer periphery of the peripheral wall of the container main body described in Patent Document 1, and the annular wall of the lid A paper container has been proposed in which a bendable locking wall is continuously provided on the lower side.

In addition, as a paper container that can be attached to the container body with a single touch and that holds the lid firmly to the container body and has excellent anti-falsification properties, the outer side of the upper end of the trunk wall described in Patent Document 2 A paper container body having a reinforced portion that is curled and reinforced is provided with a folded portion crimping portion of the annular wall member, an inclined wall portion, and a curled locking portion that engages the lower surface of the reinforcing portion, and the annular wall is reinforced. There has been proposed a paper container that is covered with a paper lid that is difficult to be tampered by raising the folded portion.

JP 2000-289759 A JP 2004-189253 A

The paper container described in Patent Document 1 has a problem that the workability of the filling and packaging line is inferior because the locking wall of the lid is folded back to the inner peripheral side after the lid is put on the container body. Further, in order to open the product after the consumer purchases it, it must be broken by forcibly opening the lid and the opening operation is not easy. Furthermore, since the container main body and the lid are made of paper, even if the locking wall of the lid is wound inward after the lid is put on the container main body, the locking wall is used as a tool. It is a structure that is easy to wake up using, and cannot completely prevent mischief. Moreover, it is impossible to stabilize the state of whether or not load collapse occurs when the lids of a plurality of containers are stacked in order upward, that is, the stackability.

Further, in the paper container described in Patent Document 2, when opening from a state where the container body is covered with a lid and the anti-tampering function is working, the upper curl portion of the annular wall extends vertically from the lower portion of the skirt wall. Two weakening lines are formed at an interval, and the tear wall is torn along the weakening line from the upper curl portion so that the annular wall can be broken and opened. It is easy to paste the broken lid and re-form it to its original shape, and it is extremely difficult to determine whether it is a lid that has been re-formed by pasting from the products displayed at the store. It is. Furthermore, as with the paper container described in Patent Document 1, since the material of the paper container described in Patent Document 2 is also formed of paper, the container body and the lid are weak against impact from the outside and are transported. The container body and the lid body are easily deformed or damaged by vibration or impact. Moreover, it is impossible to stabilize the state of whether or not load collapse occurs when the lids of a plurality of containers are stacked in order upward, that is, the stackability.

An object of the present invention is a structure that solves the above-mentioned problems, can attach the container lid to the container body with a single touch, and cannot intentionally open the container lid for the purpose of mischief or the like after distribution. In case of opening, it is a container lid with an excellent anti-falsification function that can immediately see the trace after opening, and whether or not load collapse occurs when a plurality of container lids are stacked in order upward It is to provide a container lid that can stabilize the state, that is, the stackability.

The present invention is made of a synthetic resin material having a top plate portion on the upper surface, an annular side wall portion extending from the outer periphery to the lower end of the top plate portion, and a stack rib portion formed to protrude outside the side wall portion. The side wall portion is composed of an annular upper wall portion and an annular lower wall portion, and is connected via a first thin wall portion at the boundary position, and the lower wall portion is It has a latching piece formed to protrude upward and inclined on the inside, and a separation knob formed to project on the outside thereof, and by picking the separation knob in the circumferential direction. The container lid characterized in that the lower wall portion is separable from the upper wall portion together with the locking piece at the boundary position.

According to the present invention, in the lid of the container, the separation knob is connected to the lower wall portion by a plurality of connection portions and protrudes in the circumferential direction.

The present invention is characterized in that in the lids of these containers, a stack rib portion protruding outward is formed on the lower wall portion.

The present invention is characterized in that, in the lids of these containers, a stack rib portion protruding outward is formed on the upper wall portion.

The present invention is made of a synthetic resin material having a top plate portion on the upper surface, an annular side wall portion extending from the outer periphery to the lower end of the top plate portion, and a stack rib portion formed to protrude outside the side wall portion. The side wall portion is composed of an annular upper wall portion and an annular lower wall portion, and is connected via a first thin wall portion at the boundary position, and the lower wall portion is It has a locking piece formed to protrude upwardly on the inner wall side, and a separation knob formed to protrude on the outside thereof, and the separation knob is picked in the circumferential direction. Since the container lid is characterized in that the lower wall portion is separable from the upper wall portion together with the locking piece at the boundary position, the container lid can be attached to the container body with a single touch. In the distribution stage, the container lid cannot be intentionally opened for mischief or other purposes. In addition, when opening, it is a container lid with excellent anti-falsification function that allows you to immediately see the trace after opening, and when a plurality of container lids are stacked in order upwards, load collapse occurs Whether or not to do so, that is, the stacking property can be stabilized.

1 to 6, the top plate 1 on the upper surface, the annular side wall 2 extending from the outer periphery of the top plate 1 to the lower end, and the lower wall 2 b described later of the side wall 2 are projected outside. A lid A of a container made of a synthetic resin material such as polypropylene or polyethylene having a stack rib portion 7 formed in the above manner. The side wall portion 2 is connected to the annular upper wall portion 2a and the annular lower wall portion 2b via a first thin portion 5 formed thin so as to be easily separated at the boundary position, The detaching knob 6 formed to protrude outward from the lower wall 2b is formed by picking the detaching knob 6 in the circumferential direction and peeling it off, so that the lower wall 2b Is a structure separated from the upper wall portion 2 a together with the locking portion 3 and the stack rib portion 7.

The lower wall portion 2b is formed with a plurality of claw-shaped locking pieces 3 which are inclined and protrude upward on the inner side at appropriate intervals in the circumferential direction, and the tip 3a of the locking piece and the top plate portion When the container lid A is attached to the container main body B, the container main body fitting part B1 gets over the locking piece 3 by providing the recess 4 for fitting with the container main body fitting part B1. Since the tip 3a of the locking piece engages with the container body fitting part B1 after the attachment, the container body fitting part B1 can be opened even if the container lid A is turned up and opened. Since the front end 3a of the locking piece is caught, the container lid A cannot be intentionally opened for the purpose of mischief or the like in the distribution stage. Further, the number of the locking pieces 3 to be installed is preferably 6 or more at regular intervals, but even when 3 to 4 are installed at regular intervals, there is an effect of the function of preventing falsification. Moreover, about the shape of the said locking piece 3, it is not limited to a nail | claw shape, What is necessary is just the shape which the front-end | tip 3a of a locking piece catches on the container main body fitting part B1.

5, 7, and 9, the separation knob 6 is prevented from turning over the separation knob 6 because at least one of the plurality of coupling parts 6 a is coupled to the lower wall part 2 b. Since it has an effect | action and the said knob | pick part 6 for separation protrudes on the outer side of the said lower wall part 2b, it has the ease of pinching of the said knob | pick part 6 for separation at the time of opening. In addition, a gap 8 is formed between the end of the separation knob 6 and the lower wall 2b in FIG. 7, and the separation knob 6 is picked up with fingers at the position of the gap 8. When the connecting portion 6a is separated from the lower wall portion 2b, the lower wall portion 2b can be easily opened together with the locking portion 3 and the stack rib portion 7 along the first thin-walled portion 5. It becomes the lid A of the container excellent in the function of preventing falsification that allows the later traces to be seen immediately.

3 to 6 and 8, the stack rib portion 7 protruding outside the lower wall portion 2b is formed so that the container lid A in the same direction is stacked on the container lid A of the present invention. Then, the lower end 2b1 of the lower wall portion of the container lid A installed on the upper side is installed and fixed on the stack rib portion 7 of the side wall portion 2 of the container lid A installed on the lower side. In addition, even when a plurality of the lids A of the containers are stacked upward, the container can be stably installed, the storage space can be saved, and costs for storage and transportation can be reduced. In addition, there is no defect such as product breakage that occurs due to load collapse due to stacking.

In FIG. 10, the lower wall portion 2b, the locking piece 3, and the stack rib portion 7 of the lid A of the container according to the present invention are separated, and it is possible to cover the container body B even after opening. For this reason, for example, when an object to be poured such as ice cream is left uneaten, it is possible to store it with the lid A of the container, so that entry of dust from the outside can be prevented.

A different second embodiment of the present invention will be described with reference to FIGS. A top plate portion 1 on the upper surface, an annular side wall portion 2 extending from the outer periphery to the lower end of the top plate portion 1, and a stack rib portion 7 formed to protrude outside an upper wall portion 2a (described later) of the side wall portion 2. A lid A1 of a container made of a synthetic resin material such as polypropylene or polyethylene. The side wall portion 2 is connected to the annular upper wall portion 2a and the annular lower wall portion 2b through a first thin portion 51 formed thin so as to be easily separated at the boundary position, The separation knob 6 formed to protrude outward from the lower wall portion 2b is formed along the first thin portion 51 by gripping and peeling the separation knob 6 in the circumferential direction. The portion 2 b is separated from the upper wall portion 2 a together with the locking portion 3.

The lower wall portion 2b is formed with a plurality of claw-shaped locking pieces 3 which are inclined and protrude upward on the inner side at appropriate intervals in the circumferential direction, and the tip 3a of the locking piece and the top plate portion 1 is provided with a recess 4 for fitting with the container body fitting portion B1 and a convex fitting portion 9 on the first thin portion 51, whereby the container body B is covered with a container lid. When A1 is mounted, the container body fitting portion B1 can be mounted with one touch over the locking piece 3 and the fitting portion 9, and after mounting, the tip 3a of the locking piece and the fitting portion 9 are fitted into the container body. Even if an attempt is made to open the container lid A1 by turning the container lid A1 upward to fit with the part B1, the tip 3a of the locking piece is caught by the container body fitting part B1, so that for the purpose of mischief or the like in the distribution stage The container lid A1 cannot be unintentionally opened. Further, the number of the locking pieces 3 to be installed is preferably 6 or more at regular intervals, but even when 3 to 4 are installed at regular intervals, there is an effect of the function of preventing falsification. Moreover, about the shape of the said locking piece 3, it is not limited to a nail | claw shape, What is necessary is just the shape which the front-end | tip 3a of a locking piece catches on the container main body fitting part B1.

In FIG. 15, by forming the stack rib portion 7 protruding outward from the upper wall portion 2a, the container lid A1 in the same direction is stacked on the container lid A1 of the present invention. Since the lower end 2b1 of the lower wall portion of the container lid A1 installed on the upper side is installed and fixed on the stack rib portion 7 of the side wall portion 2 of the container lid A1 installed on the container lid A1, a plurality of the aforementioned Even when the lid A1 of the container is stacked upward, it can be stably installed, the storage space can be saved, and the costs for storage and transportation can be reduced. In addition, there is no defect such as product breakage that occurs due to load collapse due to stacking.

FIG. 16 shows a state where the lower wall portion 2b of the lid A1 of the container of the present invention and the locking piece 3 are separated. After opening, when the container lid A1 with the lower wall 2b and the locking piece 3 separated is attached to the container main body B, the container main body fitting part B1 can get over the fitting part 9 and be attached with one touch. Since it can be put on the container body B afterwards, it is possible to store it with the lid A1 of the container when it is left uneaten, for example, ice cream. Can be prevented from entering.

In FIG. 5, a different embodiment of the gap 8 described in FIGS. 7 and 9 will be described based on FIGS. 17 and 18. Since the separation knob 6 has at least one of a plurality of connecting portions 6a connected to the lower wall portion 2b, the separation knob 6 has a function of preventing the separation knob 6 from being turned over. Since the knob part 6 protrudes outward at the lower wall part 2b, the knob part 6 for cutting has the ease of being picked by the knob part 6 for separation. Further, a second thin portion 81 is formed on the lower wall portion 2b of the other end position of the separation knob 6 and the separation knob 6 is picked up with fingers to pull the connecting portion 6a to the lower wall portion. The lower wall portion 2b is separated from the lower wall portion 2b along the first thin wall portion 5 that is separated from the thin wall portion 2b and is the boundary position formed by the thin wall. Since it can be easily opened by separating at the position of the second thin-walled portion 81, the lid A of the container having an excellent anti-falsification function can be seen immediately after opening. Moreover, even if it is a case where the said 2nd thin part 81 is formed in 2nd Embodiment from which this invention differs, it has the same effect.

It is a perspective view which shows the cover of the container which is embodiment of this invention. FIG. 2 is an oblique view from FIG. 1. It is a top view of FIG. It is sectional drawing of the yy direction of FIG. It is sectional drawing of the zz direction of FIG. It is sectional drawing of the xx direction of FIG. It is a top view of the pick part periphery of the embodiment. It is sectional drawing which accumulates and stack | stacks the lid | cover of the container of the embodiment. It is a top view of the embodiment which shows the state from which the lower wall part, the latching piece, and the stack rib part were partly separated. It is sectional drawing of the same embodiment which shows the state from which the lower wall part, the locking piece, and the stack rib part were separated. It is a top view which shows different embodiment of this invention. It is sectional drawing of the ya-ya direction of FIG. It is sectional drawing of the za-za direction of FIG. It is sectional drawing of the xa-xa direction of FIG. FIG. 12 is a cross-sectional view in which the lids of the container of FIG. 11 are stacked and stacked. It is sectional drawing which shows the state from which the lower wall part and locking piece of FIG. 11 were separated. It is a top view which shows different embodiment around the knob | pick part of FIG. FIG. 18 is a plan view of the embodiment showing a state where a lower wall portion, a locking piece, and a stack rib portion of FIG. 17 are partially separated.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Top plate part 2 Side wall part 2a Upper wall part 2b Lower wall part 2b1 Lower end of lower wall part 3 Locking piece 3a Tip of locking piece 4 Recess
5 1st thin part 51 1st thin part 6 Knob 6a connection part 7 stack rib part 8 gap part 81 2nd thin part 9 fitting part A container lid A1 container lid B container main body B1 container main body fitting part

Claims (4)

A lid of a container made of a synthetic resin material having a top plate portion on the upper surface, an annular side wall portion extending from the outer periphery to the lower end of the top plate portion, and a stack rib portion formed to protrude outside the side wall portion The side wall portion is composed of an annular upper wall portion and an annular lower wall portion and is connected via a first thin portion at a boundary position thereof, and the lower wall portion is upward on the inner side. It has a locking piece formed to project at an inclination, and a separation knob formed to project on the outside, and at the boundary position by grasping the separation knob in the circumferential direction. The container lid characterized in that the lower wall part is separable from the upper wall part together with the locking piece. The container lid according to claim 1, wherein the separation knob is connected to the lower wall portion by a plurality of connection portions and protrudes in the circumferential direction. The container lid according to claim 1 or 2, wherein a stack rib portion projecting outward is formed on the lower wall portion. The lid of a container according to claim 1 or 2, wherein a stack rib portion protruding outward is formed on the upper wall portion.

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