JPH0320301Y2 - - Google Patents

Description

[Detailed explanation of the idea] "Industrial application field" The present invention relates to a container with a cap.

``Prior art'' Utility Model No. 58-130947 as an example of a container with a cap
There is something disclosed in the publication No. The container has a mouth and neck that stand up from the upper end of the body through a tapered shoulder, and a container body that has a first engaging protrusion attached to the lower outer surface of the mouth and neck, and an upper opening surface of the mouth and neck. An inner circumferential wall that is closed by the top wall and hangs down from the outer circumference of the top wall is fitted to the outer surface of the mouth and neck, and a second engagement protrusion attached to the inner surface of the inner circumference wall is attached to the lower surface of the first engagement protrusion. and a cap that hangs down from the outer peripheral edge of the top wall with its lower end touching the upper surface of the tapered shoulder, and when both arbitrarily determined left and right sides of the outer peripheral wall are pressed inward. When the lower end of the outer circumferential wall is pushed up along the tapered shoulder, the cap is raised and the first and second engaging protrusions are disengaged.

"Problem to be solved by the invention" As in the conventional example above, the pressing force on the lower part of the outer peripheral wall that hangs long from the outer periphery of the top wall is converted into a pushing up force using the tapered shoulder part, and the first and second When the two engagement protrusions are formed to disengage, the outer circumferential wall must have elasticity to make it easier to press the outer circumferential wall, so when converting the pushing force into a pushing up force, The pushing-up force causes the outer peripheral wall to bend, resulting in a loss in force conversion, resulting in poor efficiency and the inconvenience of requiring extra force.

This proposal aims to eliminate such inconveniences.

"Means for Solving the Problem" A container body in which a mouth and neck are erected from the upper end of the body through a shoulder, and a first engaging protrusion is provided around the outer surface of the mouth and neck, and an opening at the upper end of the mouth and neck. The surface is closed by the top wall, and the inner peripheral wall hanging down from the lower surface of the outer periphery of the top wall is fitted to the outer surface of the mouth and neck, and the second engaging protrusion provided around the lower end of the inner peripheral wall is connected to the first engaging protrusion. engage with the lower surface of the column;
The cap further includes a cap with an outer circumferential wall hanging from the outer circumferential edge of the top wall, and by pushing the outer surface of the opposing portion of the lower part of the cap inward, the cap is pushed up and the first and second engaging protrusions are pushed up. In a container formed to be disengaged, an elastic tube 3 having an inward flange 16 attached to the inner surface of the lower end of an elastically deformable short tube portion 15 is slidably fitted to the inner surface of the outer circumferential wall 11 of the cap. A tapered surface with a small diameter downward is formed on the upper surface of the inward flange 16, and the inner periphery of the inward flange 16 is formed between the upper surface of the upward step 5 formed on the inner periphery of the container body shoulder 6 and the lower end of the inner peripheral wall 10. An outward flange 20 or outer circumferential wall 1 interposed therebetween and protruding outward from the lower end of the short cylindrical portion 15 to the outer circumferential wall 11.
By pushing up the inner circumferential wall 10 of the tapered surface by the inward pushing of step 1, the first and second engagement protrusions 8 and 12 can be disengaged from each other. Third and fourth engagement protrusions 14 and 18 that can be engaged with each other are respectively provided with appropriate gaps between them.

"Operation" When the cap 2 is fitted and attached to the container mouth neck 7, the first engagement protrusion 8 and the second engagement protrusion 12 are engaged as shown in FIG. 1 or 3. ing. The lower end surface of the inner circumferential wall 10 is in a state of being somewhat lifted from the upper surface of the upward step portion 5. Further, the inner peripheral part of the inward flange 16 of the elastic cylinder 3 is formed by the above-mentioned upward step part 5.
It is interposed between the upper surface and the lower end surface of the inner peripheral wall 10.

Here, in order to remove the cap 2, the outer peripheral wall 11
Alternatively, as shown in FIG. 3, if the outward flange 20 protruding outward from the outer circumferential wall from the lower end of the elastic tube 3 is pushed inward into the cap 2, the inward flange 16 whose lower surface is in contact with the upper surface of the upwardly facing step is shaped like a wedge. Inner wall 1
0 to disengage the first and second engagement protrusions 8 and 12, and the cap 2 can be removed.

To close the cap 2, the inner circumferential wall 10 is shallowly fitted to the upper part of the mouth and neck part 7, and then the cap is pushed down, and the second engagement ridge 12 is engaged with the lower surface of the first engagement ridge 8.

``Embodiment'' The first embodiment of the present invention shown in FIGS. 1 and 2 will be described below with reference to the accompanying drawings. 1 is a container body, 2 is a cap for closing the mouth of the container body, Reference numeral 3 denotes an elastic cylinder for removing the cap, which is fitted inside the cap 2, and is molded from a synthetic resin material.

The container body 1 is a container in which a neck part 7 stands up from the upper end of a body part 4 via a shoulder part 6. An upward step part 5 is provided on the shoulder part 6 adjacent to the neck part 7, and the neck part 7
A first engaging protrusion 8 is provided around the middle part of the outer periphery.

The cap 2 has an inner circumferential wall 10 which fits into the mouth and neck part 7 from the top wall 9, and an outer circumferential wall 11 which extends vertically from the inner circumferential wall 10 with a small gap therebetween. A second engaging protrusion 12 that engages with the lower surface of the first engaging protrusion 8 is protruded from the lower end of the inner circumferential wall 10 . A plurality of cuts 13 are made from the lower end surface of the inner circumferential wall 10 to the upper part of the inner circumferential wall at intervals in the circumferential direction of the inner circumferential wall 10, and a third engagement protrusion 14 is provided protruding from the inner periphery of the lower part of the outer circumferential wall 11. are doing. In this embodiment, in particular, the outer circumferential wall 11 is formed to elastically deform inward when pressed from the outer surface.

The elastic cylinder 3 has a short cylinder part 15 slidably fitted into the outer circumferential wall 11, and an inward flange 16 formed in a wedge shape with an upper surface tapered to a small diameter downward is attached to the inner surface of the lower end of the short cylinder. are doing. The inner peripheral portion of the inward flange 16 is interposed between the lower end surface of the inner peripheral wall 10 and the upper surface of the upward step portion 5. Further, a plurality of cuts 17 are made at intervals in the circumferential direction from the lower end of the inward flange 16 and the short cylindrical portion 15 to the upper end of the short cylindrical portion.

Therefore, the notch 17 allows the elastic tube 3 to be elastically deformed in the outward and outward directions.
When the lower part of the outer circumferential wall 11 of the cap 2 is pushed into the inner package, the lower part of the elastic tube 3 is pushed against the inner surface of the outer circumferential wall 11 and elastically deforms inward, so that the inward flange 16 also slides inward. However, the tapered surface of this inward flange 16 pushes up the inner circumferential wall 10 to enable the first and second engaging protrusions 8 and 12 to be disengaged from each other. In addition, a fourth engagement protrusion 18 is attached to the upper outer periphery of the short cylindrical portion 15, and when the cap 2 is removed, the aforementioned third engagement protrusion 14 is attached to the lower surface of the fourth engagement protrusion 18. The elastic cylinder 3 is engaged from inside the inner circumferential wall 10.
prevents it from falling off.

3 and 4 show a second embodiment. In this embodiment, the length of the outer circumferential wall 11 of the cap 2 is shortened, and the outer circumferential wall 11 is directed outward from the lower end of the elastic tube 3. A flange 20 protrudes, and by pushing the outward flange 20 into the cap 2, the cap 2 can be removed in the same manner as in the first embodiment.

"Effect of the invention" The present invention has the above-mentioned structure, in which the short cylindrical part 15 is slidably fitted to the inner surface of the outer circumferential wall 11 of the cap, and the upper surface of the inward flange 16 attached to the inner surface of the lower end of the short cylindrical part is fitted. A small-diameter tapered surface is formed, and the inner peripheral part of the inward flange 16 is interposed between the upper surface of the upwardly facing step part 5 of the container body shoulder part and the lower end of the inner peripheral wall 10, and The first and second engaging protrusions 8 and 12 are disengaged by pushing up the inner circumferential wall 10 of the tapered surface by pushing the outward flange 20 protruding outward from the wall 11 or the outer circumferential wall 11 inward. In other words, the wedge-shaped inward flange 16 is pushed between the upper surface of the upwardly facing step portion 5 and the lower end of the inner peripheral wall 10.
Since it is formed to push up directly, the pushing force on the outward flange 20 or the outer peripheral wall 11 is efficiently converted into pushing up force without waste, but as in the example described above, the conversion is inefficient and there is loss. The cap can be easily removed without requiring extra force as in the case of a cap.

[Brief explanation of the drawing]

1 and 2 show a first embodiment of the container with a cap of the present invention, FIG. 1 is a front view with main parts cut away, FIG. 2 is an exploded perspective view with a part cut away, and FIG.
4 and 4 show a second embodiment, and FIG. 3 is an exploded perspective view with main parts cut away. 1... Container body, 2... Cap, 3... Elastic cylinder.

Claims (1)

[Scope of utility model registration request] A container body in which a neck part stands up from the upper end of the body part via a shoulder part, and a first engagement protrusion is provided around the outer surface of the mouth neck part, and an upper end opening surface of the mouth neck part is closed with a top wall; An inner circumferential wall hanging down from the lower surface of the outer circumference of the top wall is fitted to the outer surface of the mouth and neck, and a second engagement ridge provided around the lower end of the inner circumferential wall is engaged with the lower surface of the first engagement ridge,
The cap further includes a cap with an outer circumferential wall hanging from the outer circumferential edge of the top wall, and by pushing the outer surface of the opposing portion of the lower part of the cap inward, the cap is pushed up and the first and second engaging protrusions are pushed up. In a container formed to be disengaged, an elastic tube 3 having an inward flange 16 attached to the inner surface of the lower end of an elastically deformable short tube portion 15 is slidably fitted to the inner surface of the outer circumferential wall 11 of the cap. A tapered surface with a small diameter downward is formed on the upper surface of the inward flange 16, and the inner periphery of the inward flange 16 is formed between the upper surface of the upward step 5 formed on the inner periphery of the container body shoulder 6 and the lower end of the inner peripheral wall 10. An outward flange 20 or outer circumferential wall 1 interposed therebetween and protruding outward from the lower end of the short cylindrical portion 15 to the outer circumferential wall 11.
By pushing up the inner circumferential wall 10 of the tapered surface by the inward pushing of step 1, the first and second engagement protrusions 8 and 12 can be disengaged from each other. A container with a cap, characterized in that third and fourth engaging protrusions 14 and 18 that can be engaged with each other are respectively provided with appropriate gaps between them.