JPH0536315B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a lid body having an oval outer cylinder part having the same shape as the oval shape of the body part of a container body, A configuration in which the lid placed so as to be aligned with the lid is pushed down to engage and install, the elliptical short diameter side of the lid is pressed from the side, the engagement is released, and the lid is pulled up and removed. Regarding the lid body.

(Prior Art) Regarding the above-mentioned lid of an oval container, the present applicant filed an application in Utility Model Application No. 14821-1983 (Kokai No. 132251-1981). The lid and the container body to which the lid is attached will be explained using FIGS. 1 and 2.

First, as shown in FIG. 2, the container body 1 has an elliptical body 2, an upper part is circular, a lower part is an ellipse in which the minor axis of the ellipse of the body is the short axis, and the ellipse of the body is circular. The lower end of the lower portion on the longer diameter side of the shape is provided with an elliptical neck portion having an overhanging top surface portion 7 and an overhanging step portion 8.

Referring to FIG. 1, the lid body 13 includes an outer cylinder 14 having the same shape as the oval of the body, an inner cylinder 15 hanging down from the ceiling part 17, and an outer cylinder provided on the short diameter side of the oval. A connecting rib 19 that connects the cylinder 14 and the inner cylinder 15
and a lower end 16 of the inner cylinder 15 on the longer diameter side of the ellipse.
It has an inner cylinder protrusion 20 that engages with the engagement step part 8 of the container body provided on the inner surface side of the container body.

Then, the lid 13 is placed over the oval neck of the container body 1, and the lid is pushed down to engage the inner cylinder protrusion 20 with the overhanging stepped portion 8 to attach the lid to the container body,
Press the short diameter side of the outer cylinder of the lid body from the side to connect the connecting rib 1.
9, the inner cylinder is deformed to release the engagement, and the lid is pulled up and removed.

(Problems to be Solved by the Invention) In the case of the above-mentioned lid, since the inner cylinder 15 is configured in a cylindrical shape, the container body is filled with liquid contents and the lid is attached to form an oval shape. When containers are packed in a cardboard box so that the short diameter direction of the containers overlaps, for example, when pressure or impact is applied to the cardboard box from the outside during transportation, the outer cylinder 14 of the oval lid body 13 is pressed in the short diameter direction. If pressure is applied to the container body at the same time, the lid 13 may loosen, causing an accident in which the liquid inside the container flows out.

An object of the present invention is to obtain a lid having a structure that can contribute to preventing the above-mentioned liquid from flowing out.

(Means for Solving the Problem) In the above-mentioned type that is attached to the above-mentioned container body, in the lid body, the distance between the facing bases of the pair of inner cylinder protrusions of the inner cylinder is set so that the facing distance between the bases of the inner cylinder protrusions perpendicular to this is It is characterized in that it is made closer than the interval and is less than the interval between the overhanging top surface parts.

(Function) In the lid of the present invention, since the inner cylinder has the above shape, the length of the inner cylinder wall on the side that is pressed inward through the outer cylinder is short, and the length of the inner cylinder wall on the side that is pressed inward through the outer cylinder is short, and the side that is perpendicular to this is short. Since the length of the inner cylinder wall is long, the amount of displacement on the long side that is displaced outward as the short side is displaced inward is smaller than the amount of displacement on the short side, and moreover, within the same amount In order to displace it in this direction, the shorter side requires a stronger pressing force than the longer side. Therefore, in order to increase the distance between the pair of inner cylinder protrusions, a stronger pressing force is required compared to a conventional lid having a cylindrical inner cylinder, and the lid does not come off even if subjected to some external force. There isn't.

Example 1 Figures 1a, b, and c illustrate one example of implementing the present invention, and Figure 1a is a side view showing the right half cross section in the major axis direction of the lid of the oval container of the present invention. b is a side view showing the right half cross section of the lid in the minor axis direction; c is a bottom view of the lid; FIG. Figure a is a side view showing a right half section in the major axis direction of the container, Figure b is a side view showing a right half cross section in the minor axis direction of the container, Figure c is a plan view of the container, and Figure 3 is a side view showing the right half cross section in the minor axis direction of the container. FIG. 2 is a cross-sectional view of the right half in the long axis direction and the left half in the short axis direction, showing a state in which the oval container shown in the figure is covered with the oval lid shown in FIG. 1;

The lid 13 of the oval container of this embodiment shown in FIGS. , an elliptical inner cylinder 15 that hangs down from the ceiling part 17 and has a short axis in the major axis direction of the oval outer cylinder 14 and a major axis in the short axis direction of the oval outer cylinder 14; To prevent the lid from turning by fitting into a pair of connecting ribs 19 that connect the inner surface of the outer cylinder 14 and the outer surface of the inner cylinder 15 on the center line connecting the short diameter direction and the vertical groove 11 of the container neck described later. 1 protruding inward from the inner cylinder
Furthermore, a pair of inner cylinders are provided at the lower end of the inner surface in the short diameter direction of the inner cylinder 15 to lock onto the protruding step part 8 of the container neck part 4 described later to prevent the lid pair 13 from falling off. A protrusion 20 is provided, and a sealing ring 18 is provided at the center of the inner surface of the ceiling 17 to protrude into the container opening 12 to prevent the contents from flowing out.

The container body 1 to which the lid 13 is applied is generally the second
As shown in Figures a, b, and c, the oval body 2
It consists of a head 3 comprising an elliptical neck 4 and an slanted shoulder 5, the long and short axes of which are located in the same direction. The oval neck part 4 has a perfectly circular part 6 surrounding the circular opening 12 at the upper end, and then there is an overhanging top part 7 that expands downward in the long axis direction of the oval shape of the body, and at the lower end there is an overhanging step. A portion 8 is cut approximately perpendicularly to the axis of the container 1, and below it is a constricted portion 10 that is connected to the shoulder portion 5 with a small diameter. On the other hand, in the short axis direction of the ellipse of the body, there is an inverted tapered pinched part 9 that is sandwiched downward toward the constriction part 10 at the lower end, and on the outer surface on the center line connecting the short axis direction, there is a lid body. There is a vertical recessed groove portion 11 into which a vertical support portion 21 is inserted.

The state in which the lid 13 shown in FIG. 1 is placed over the neck 4 of the container body 1 shown in FIG. 2 is as shown in FIG. When aligned in the oval shape of 2 and pressed down, the vertical support 21 inside the lid is inserted into the vertical groove 11 of the neck 4, and the inner cylinder protrusion 20 of the inner cylinder 15 of the lid 13 is elastically expanded. While descending the overhanging top surface part 7, when it reaches the overhang step part 8 at the lower end, the inner cylinder projection part 2
0 is contracted and locked onto the overhanging stepped portion 8, and the bases of the pair of inner cylinder projections 20 are brought into close contact with the apexes of the overhanging top surface portion 7, and the lid body 13 is firmly attached to the neck portion 4 of the container body 1. .

To remove the lid 13 from the neck 4, see Figure 1c.
and the outer cylinder 14 of the lid body 13 as shown in FIG.
If the central part of the short diameter direction is strongly pressed in the direction of arrow P, the gap in this direction of the lid cylinder 15 will be compressed via the connecting rib 19, and the gap in the direction perpendicular to this will be widened and the inner part will be compressed. The cylindrical protruding part 20 may be moved to the right in the figure rather than the overhanging stepped part 8, and the lid body 13 may be lifted upward in this state.

The lid 13 of this embodiment will not be disengaged even if a weak pressing force is applied.

This is because, in order to remove the state in which the cylindrical protrusion 20 provided on the arc-shaped inner cylinder wall is engaged with the overhanging step part 8, it is necessary to By displacing the inner cylinder walls on the orthogonal sides inward to increase the radius of curvature of that portion and narrowing the gap between both walls, the inner cylinder wall on the side having the inner cylinder protrusion 20 can be moved outward. (The distance between the walls on the orthogonal sides is narrowed, and the radius of curvature of the arc of the walls on the orthogonal sides increases, resulting in an inward protrusion.) 20)
Therefore, it is necessary to widen the distance between the inner cylinder protrusions 20, 20 beyond the distance between the apexes of the overhanging top surface portion 7,
In this embodiment, the side of the inner cylinder wall on which the interval is narrowed is the short side with a small radius of curvature (smaller than the inner cylinder radius when a conventional cylindrical inner cylinder is used), and on the other hand,
The side that widens the gap is the long side with a large radius of curvature (larger than the inner cylinder radius when a cylindrical inner cylinder is used), so the long side moves outward as the short side moves inward. The amount of displacement is considerably smaller than the amount of displacement on the short side, so compared to the case of using the conventional cylindrical inner cylinder, the amount of inward displacement on the side where the interval is narrowed must be increased. The force required to narrow the gap by the same length without being able to disengage is greater when the radius of curvature of that part is smaller, so in the end, a stronger pressing force is applied through the outer cylinder 14 than in the conventional example. Inner cylinder 1
5, the engagement will not be released.

Embodiment 2 In FIG. 4, the outer cylinder 14 is oval and the inner cylinder 22 is 8.
This shows another embodiment of the present invention having a rectangular shape.
4A is a side view showing a right half cross section of the outer cylinder 14 in the major axis direction, FIG. 4B is a side view showing a right half cross section of the outer cylinder 14 in the short axis direction, and FIG. 4C is a bottom view.

This example differs from the lid of Example 1 in that the inner cylinder 22 is octagonal. This lid body is also attached to the same shape as the container body 1 shown in the first embodiment. As can be seen most clearly in FIG. 4c, the inner cylinder 22 is arranged with short sides A and A facing each other in the short axis direction of the oval outer cylinder 14,
The long sides C and C are arranged opposite to each other in the long axis direction of the oval outer cylinder 14, and two sets of narrow guide parts C, B, and C are arranged at the four corners between them at an angle of 45 degrees. Arrange B, B, and these eight plate-shaped materials A, B, H, B, A,
It is a scalene octagonal cylindrical body in which B, C, and B are connected by a thin connecting portion 23.

Therefore, the elliptical outer cylinder 14 of the lid 13 of this example is aligned in the long and short axis directions of the elliptical body 2, and the central part of the outer cylinder 14 in the short axis direction is pinched and pressed from both sides with fingertips. Then, the short sides A and A of the inner cylinder 22 are pressed to narrow the gap between them, and as a result, the narrow corners B, B,
Press long sides C and C from both ends through B and B,
At this time, the thin connecting portion 23 changes to a wide-angle direction, whereby the long sides C and C smoothly curve outward in an arc shape. In this state, when the lid body 13 is pushed over the neck part 4, the vertical support part 19 is inserted into the vertical groove part 11 of the neck part 4, and the inner cylinder protrusion part 20 slides down on the surface of the overhanging top surface part 7 of the neck part 4. Then, it reaches the overhanging stepped portion 8 and is locked.

When locked, the cylindrical protrusion 20 and the long side C are curved in an arc shape, and the inner cylindrical protrusion 2
0, the overhanging stepped portion 8 is wide and engaged, and a stronger engagement than in the case of the first embodiment can be obtained.

The method of releasing this lock and opening the lid body 13 is the same as in the first embodiment.

In the lid of this embodiment, a stronger pressing force than in the first embodiment is required to separate the inner cylinder protrusion 20 from the overhanging stepped portion 8.

(Effects of the Invention) According to the lid of the present invention, a strong pressing force is required to release the lid from the container body. Therefore, the lid body 1
Even if some external force is applied to the short diameter side of the outer cylinder No. 3, the lid body does not loosen and there is no risk of liquid leakage.
Further, when only the lid 13 is stored in an integrated box, the inner cylinder 15 (or long side part C) at the base of the protrusion 20, which becomes the fitting part, is generated in the lid 13 that is stacked on the bottom.
It has the additional effect of eliminating deformation caused by crushing.

[Brief explanation of drawings]

FIG. 1a is a side view showing a right half cross section in the major axis direction of the lid of the oval container of the present invention, FIG. 1b is a side view showing a right half cross section in the short axis direction of the lid, and FIG. Figure 2a is a side view showing the right half section of the oval container in the major axis direction, Figure 2b is a side view showing the right half cross section of the container in the minor axis direction, and Figure 2c is a plan view of the container. , FIG. 3 is a sectional view of the container shown in FIG. 2 covered with the lid shown in FIG. 1, with the right half in the long axis direction and the left half in the short axis direction;
Fig. 4 shows another example of the embodiment of the present invention in which the outer cylindrical part is elliptical and the inner cylindrical part is octagonal. FIG. 3B is a side view showing a right half cross section of the outer cylinder portion 14 in the minor axis direction, and FIG. 1C is a bottom view. 1: Container body, 2: Oval body, 3: Head,
4: Neck, 5: Inclined shoulder, 6: Perfect circle, 7: Overhanging top surface, 8: Overhanging step, 9: Reverse tapered sandwich, 10: Constriction, 11: Vertical groove, 1
2: opening, 13: lid, 14: outer cylinder, 15: inner cylinder, 16: lower part of inner cylinder, 17: ceiling, 18: sealing ring, 19: connecting rib, 20: inner cylinder protrusion, 2
1: Vertical support section, 22: 8 square inner cylinder section, 23: Thin connection section.

Claims (1)

[Scope of Claims] 1. An elliptical body, an upper part is circular, a lower part is an ellipse with a minor axis on the short axis side of the oval of the body, and the lower part on the major axis side of the oval of the body. A lid that is attached to a container body that has an oval neck that has a pair of overhanging top surfaces and an overhanging step at the lower end of the container. a pair of connecting ribs provided on the short diameter side of the ellipse of the outer cylinder to connect the outer cylinder and the inner cylinder; and a pair of connecting ribs provided on the inner surface of the lower part of the inner cylinder on the long diameter side of the ellipse. a pair of inner cylinder protrusions that engage with each of the pair of overhanging step portions, the lid is placed over the oval neck of the container body, the lid is pushed down and the inner cylinder protrusions are inserted into the overhang step portions; The lid body is configured such that the lid body is engaged and attached, the inner cylinder is deformed by pressing the short diameter side of the outer cylinder of the attached lid body from the side, and the engagement is released and the lid body is pulled up and removed, An elliptical container characterized in that the facing distance between the bases of the pair of inner cylinder protrusions of the inner cylinder is closer than the facing distance between the inner surfaces of the inner cylinder orthogonal thereto, and is equal to or less than the distance between the projecting top surface parts. lid body. 2. The lid of an oval container according to claim 1, wherein the inner cylinder is oval. 3 The inner cylinder is octagonal, the distance between the sides where the inner cylinder protrusion is provided is less than or equal to the diameter of the overhanging top surface of the oval neck of the container body, and the side is connected to the adjacent side through the thin wall part. The lid of an oval container according to claim 1, which is connected to the lid.