JPH0581053U - Inner lid of liquid container - Google Patents

Abstract

(57) [Summary] [Purpose] There is no risk that the liquid content will be scattered around when opening and will contaminate your fingers, clothes, etc. Also, after opening, there will be no unsanitary condition due to scattered open parts, and they will be discarded one by one. Provide an inner lid for a liquid container that does not need to be disposed of. [Structure] A pressing projection 7 is formed by projecting upward from a top plate 5 of the inner lid 1. A breaking line 8 is formed around the bottom of the pressing protrusion 7.
And the joining line 9 is formed. By pressing the pressing protrusion 7 downward, the breaking line 8 breaks and the spout 18 is opened, and the joining line 9 maintains the joined state with the top plate portion 5. When the locking rib 15 is formed on the pressing protrusion 7, the closing of the spout 18 is prevented and the pouring amount can be adjusted.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an inner lid of a liquid container in which an unsealing portion is joined to a top plate portion and remains even after unsealing.

[0002]

[Prior Art]

 Conventionally, as an inner lid of a liquid container made of a thermoplastic resin for injecting a liquid such as soy sauce or salad oil, as shown in a longitudinal sectional view in FIG. A break line 34 consisting of a notch groove 33 is formed in the plate portion 32, and the inside thereof is used as an unsealing portion 35. A connecting piece 36 is erected on one end portion of this unsealing portion 35 and one end portion of a finger hook ring 37 is attached to the upper end portion thereof. An inner lid 38, which is a so-called pull-open type cap, is widely used. The inner lid 38 is broken at the breaking line 34 by hooking the index finger on the finger hook ring 37 and pulling the finger hook ring 37 upward, and the opening portion 35 is separated from the top plate portion 32, and the spout is opened. It is to be opened.

[0003]

[Problems to be solved by the device]

 However, since this inner lid opens the spout by pulling the finger hook ring upward, the liquid content adhering to the back surface of the unsealing part at the time of opening splashes to the surroundings, and fingers and clothes. There was a risk that they would get dirty. Also, since the opening part is separated from the top plate part, after the opening, this unnecessary opening part is scattered on the table etc. and becomes unsanitary, and the opening part must be discarded one by one. It was troublesome. Furthermore, the finger hook ring may separate from the connecting piece, and the spout may not be opened.

The present invention has been made in view of the problems of the conventional inner lid, and an object of the present invention is to treat the unsealed portion after the unsealing without scattering the content liquid at the time of unsealing. Another object is to provide an inner lid for a liquid container that can reliably open the spout without the need for the above.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the inner lid of the liquid container of the present invention is formed with a pressing protrusion protruding upward on the top plate, and a breaking line and a joining line are formed on the top plate around the hem of the pressing protrusion. To form an unsealed part, and by pressing the pressing protrusion downward, the rupture line breaks and the spout is opened, and the joining state with the top plate part is maintained at the joining line. It will be.

In order to prevent upward movement of the pressing protrusion after opening, it is preferable to form a locking rib slightly protruding outward on the side wall of the pressing protrusion.

[0007]

[Action]

 By pressing the pressing protrusion downward, it breaks at the breaking line and opens the spout. On the other hand, the unsealing portion maintains the joining state with the top plate portion at the joining line.

[0008]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a vertical sectional view of an embodiment of the inner lid of the liquid container of the present invention, FIG. 2 is the same plan view, FIG. 3 is the same vertical sectional view when a plurality of locking ribs are formed, and FIG. -It is an explanatory diagram showing the opening method.

The inner lid of the liquid container is manufactured by injection-molding plastic such as polyethylene or polypropylene, and as shown in FIG. The inner fitting cylindrical portion 3 joined to the inner fitting outer cylindrical portion 2 and having the male screw portion 3a formed on the upper portion of the outer fitting fitting cylindrical portion 2, It is composed of a spouting tube portion 4 which is joined and formed with a bent portion 4a in the upper part, and a top plate portion 5 which is joined to the inside of the lower end portion of the spouting tube portion 4.

The inner lid 1 is configured such that an opening (not shown) of a container body is fitted into a fitting groove 6 defined by a fitting outer cylinder portion 2 and a fitting inner cylinder portion 3 lower part. The male screw portion 3a of the fitted inner cylinder portion 3 and the female screw portion (not shown) formed on the outer lid are screwed together to cover the outer lid and then sold.

In the inner lid 1 of the present invention, a pressing protrusion 7 protruding upward is formed on the top plate portion 5, and a breaking line 8 and a joining line 9 are formed around the hem portion to form an opening portion 10. It was done.

As shown in FIGS. 1 and 2, the pressing protrusion 7 is composed of front wall portions 11 a and 11 b, side wall portions 12 a and 12 b, a rear wall portion 13, and an upper wall portion 14. Here, considering that the outer lid is covered from above and that the finger is not caught on the spouting tube portion 4 at the time of opening, the height of the pressing protrusion 7 is substantially the same as the height of the spouting tube portion 4. Most preferably.

Although various shapes can be considered as the shape of the pressing projection portion 7, in order to facilitate the unsealing, as shown in FIG. It is preferable that the shape is V-shaped and the tip is sharp. This is because such a shape increases the stress concentration factor at the tip portion and allows the tip portion to be easily broken during pressing.

Since a larger pressing force is applied to the front part of the pressing protrusion 7, the upper wall part 14 inclines downward at the rear part following the flat surface part 14a in order to prevent the finger from being caught during pressing. The inclined surface portion 14b is preferable.

In order to prevent upward movement of the pressing protrusion 7 after opening, as shown in FIG. 1, the side walls 12a and 12b are formed with locking ribs 15 that project slightly outward. One locking rib 15 may be formed on each of the side wall portions 12a and 12b, or a plurality of locking ribs 15 may be formed. When forming a plurality, it is preferable to form at a predetermined interval in a direction inclined by a predetermined angle with respect to the flat surface portion 14a, as shown in FIG. The shape of the locking rib 15 may be a circular shape, a rectangular shape or the like.

The breaking line 8 and the joining line 9 are formed around the skirt of the pressing protrusion 7, and the breaking line 8 is designed to receive the pressing force without reducing as much as possible. Formed just outside the hem.

As shown in FIG. 2, the break line 8 is formed by forming a notch groove 16 from below around the hem of the front wall portions 11a and 11b and the side wall portions 12a and 12b, and thinning that portion. Is. The notch groove 16 has a V-shape with a sharp tip and a stress concentration factor at that portion is made high, or a relatively deep portion is formed to have a thinner wall, and the material strength of that portion is made low, so that the fracture line In Fig. 8, a crack is generated to facilitate breakage.

On the other hand, as shown in FIG. 2, the joining line 9 is formed by forming a notch groove 17 around the skirt of the rear wall portion 13 from below and thinning that portion. The notch groove 17 has a substantially trapezoidal shape with a flat tip and a relatively low stress concentration factor at that portion, or a relatively shallow portion with a predetermined thickness to keep the material strength at that portion relatively high. In this way, no crack is generated at the joining line 9 and bending is facilitated.

Next, a method of opening the spout in the inner lid 1 of the present invention will be described.

First, as shown in FIG. 4A, the abdomen of the thumb is placed on the flat surface portion 14 a of the upper wall portion 14 of the pressing protrusion 7. At this time, if the height of the pressing protrusion 7 is substantially the same as the height of the spout tube portion 4, the finger can be placed on the flat surface portion 14a without being caught on the spout tube portion 4.

Next, if force is applied to the abdomen of the thumb to press the flat surface portion 14a downward, a large pressing force is applied to the front portion of the pressing protrusion 7, and as shown in FIG. 4 (b). The breaking line 8 breaks to form a spout 18, and the joining line 9 holds the joined state with the top plate portion 5 to form a hinge portion 19.

The locking rib 15 is pushed under the top plate portion 5 by the elastic deformation of the side wall portions 12a, 12b. However, after being positioned below the top plate portion 5, the side wall portions 12a, 12b are in the original shape. The locking rib 15 comes into contact with the lower surface of the top plate 5 to prevent the upward movement of the pressing protrusion 7. Therefore, it is possible to prevent the spout 18 from closing.

When a plurality of locking ribs 15 are formed as shown in FIG. 3, the opening area of the spout 18 is adjusted by changing the locking ribs 15 contacting the lower surface of the top plate 5. It is possible to make the amount of pouring out the required amount.

FIG. 5 is a vertical sectional view of another embodiment of the inner lid of the liquid container of the present invention. In FIG. 5, the same parts as those of the inner lid 1 of the above embodiment are designated by the same reference numerals.

In the inner lid 21 of the other embodiment, as shown in FIG. 5, the break line 22 has a notch groove 23 formed from the upper side around the hem portions of the front wall portions 11a and 11b and the side wall portions 12a and 12b. It is made and the part is made thin. Similar to the inner lid 1 of the above-described embodiment, the notch groove 23 has a V-shape and a sharp tip, and the stress concentration factor of that portion is increased, or it is formed relatively deep to make it thinner, and the material strength of that portion is increased. Is set so that a crack is generated at the breaking line 22 to facilitate the breaking.

The structure of the inner lid 21 other than the broken line 22 is the same as that of the inner lid 1 of the above-mentioned embodiment, and the opening method thereof is also the same.

[0027]

[Effect of the device]

 Since the inner lid of the liquid container of the present invention opens the container by pressing the pressing protrusion downwardly, there is no risk that the liquid content will be scattered around and unclean the fingers, clothes, etc. when the container is opened.

Further, since the pressing protrusions are held in a state of being joined to the top plate through the hinges, the unsealing parts are not scattered on the table or the like after unsealing and are discarded one by one. There is no need.

Further, by forming a locking rib on the pressing protrusion, the closing of the spout can be prevented and the pouring amount can be set to an appropriate amount.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an embodiment of an inner lid of a liquid container of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a vertical cross-sectional view when a plurality of the same locking ribs are formed.

FIG. 4 is an explanatory view showing the opening method.

FIG. 5 is a vertical cross-sectional view of another embodiment of the inner lid of the liquid container of the present invention.

FIG. 6 is a vertical sectional view of an inner lid of a conventional liquid container.

[Explanation of symbols]

 1 Inner lid 5 Top plate portion 7 Pressing protrusion portion 8 Break line 9 Joining line 10 Opening portion 18 Pouring outlet 21 Inner lid

Claims (2)

[Scope of utility model registration request] 1. A pressing protrusion protruding upward is formed on a top plate, and a breaking line and a joining line are formed on a top plate around the skirt of the pressing protrusion to form an unsealing part. An inner lid of a liquid container, which is capable of breaking at the breaking line to open the spout by pressing the portion downward and maintaining the joined state with the top plate portion at the joining line. 2. The inner lid of the liquid container according to claim 1, wherein an outwardly projecting locking rib is formed on a side wall of the pressing protrusion.