JP2013047104A - Double container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a double container capable of preventing the rotation of an inner container relative to an outer container caused by the opening and closing of a cap, allowing attachment between the inner container and the outer container to be not easily disengaged during use, and allowing the inner container to be easily detached from the outer container when replacing the inner container.SOLUTION: The double container comprises an outer container, an inner container, and a cap screwed with the inner container. An elastic body is attached between the outer container and the inner container. The outer container comprises a bottom wall and an outer circumferential wall standing at an outer edge of the bottom wall. A key-shape recessed groove is formed in a recessed manner at an inner circumference of the outer circumferential wall. The key-shape recessed groove is formed with an insertion vertical groove and an engagement vertical groove. The inner container comprises a bottom wall, an inner circumferential wall, a flange continuously provided at an outer circumference of the inner circumferential wall, and an outer circumferential wall vertically provided at a lower surface of the flange. An engagement protruding part which is movably formed in the key-shape recessed groove of the outer container is provided at the outer circumference of the outer circumferential wall. A lower part of the elastic body is mounted on an upper surface of the bottom wall of the outer container, and formed so as to be in pressure-contact with a lower surface of the bottom wall of the inner container.

Description

The present invention relates to a double container, in particular an inner container and an outer container, and relates to a double container in which the inner container can be replaced.

  Attach the inner container to store the contents inside the outer container, screw the cap on the mouth of the inner container and seal it, and after using the contents of the inner container, A double container that has been removed from an outer container, mounted with a new inner container filled with contents, and used again is well known.

  In addition, in a well-known double container, when the cap screwed to the inner container is opened and closed, the inner container rotates with the cap relative to the outer container, and the engagement between the inner container and the outer container is released. A double container that solves the problem of the container being detached from the outer container is also known (see, for example, Patent Document 1).

Japanese Utility Model Publication No. 53-53654

  However, in the double container described in Patent Document 1, the inner container is prevented from being detached from the outer container by the rotation of the cap, but there is a problem that when the cap is lifted, the inner container is detached from the outer container.

  An object of the present invention is to solve the above-mentioned problems, and can prevent the inner container from rotating relative to the outer container by opening and closing the cap, and the inner container and the outer container cannot be easily detached during use. An object of the present invention is to provide a double container in which the inner container can be easily removed from the outer container when the inner container is replaced.

  In order to solve the above problems, the present invention is a double container comprising an outer container, an inner container, and a cap screwed to the inner container as a double container, the outer container being disposed between the outer container and the inner container. Is equipped with an elastic body, the outer container is composed of a bottom wall and an outer peripheral wall standing on the outer edge of the bottom wall, and a key-type groove is provided in the inner periphery of the outer peripheral wall, The key-shaped concave groove includes an insertion vertical groove portion that opens downward from the upper surface of the outer peripheral wall and an engagement vertical groove portion, and the inner container includes a bottom wall and an inner peripheral wall that stands on the outer edge of the bottom wall. The outer peripheral wall includes a flange connected to the outer periphery of the inner peripheral wall and an outer peripheral wall suspended from the lower surface of the flange. The outer periphery of the outer peripheral wall is formed so as to be movable in the key-shaped concave groove of the outer container. The elastic protrusion is placed on the upper surface of the bottom wall of the outer container, and when the inner container is attached to the outer container, the upper part is the inner container. To adopt a structure which is characterized in that it is formed to the lower surface and the pressure wall.

  As an example of the key-shaped groove, the key-shaped groove has an insertion vertical groove extending downward to a predetermined height, a horizontal groove extending laterally from the insertion vertical groove, and upward from an end of the horizontal groove. Or a key-type concave groove extending downward in a horizontal oblique direction from the insertion vertical groove. A configuration characterized by comprising an inclined groove and an engaging vertical groove extending upward from the end of the inclined groove is adopted.

  As a specific example of the outer container and the inner container, on the upper part of the inner periphery of the outer peripheral wall of the outer container, an engagement step portion that is expanded to a predetermined height by forming a peripheral surface and an upper surface is provided circumferentially, A key-shaped concave groove is arranged below the upper surface, and the flange of the inner container slides within the peripheral surface of the engagement step portion of the outer container, and the upper surface attaches the inner container to the outer container. In this case, a configuration is adopted in which the outer container is flush with the upper surface of the outer peripheral wall of the outer container.

The double container of the present invention has a repulsive force of an elastic body mounted between the outer container and the inner container, and a key-type concave groove disposed on the inner periphery of the outer peripheral wall of the outer container and the outer peripheral wall of the inner container. By fixing the inner container in the outer container by engaging with the engaging convex portion disposed on the outer periphery, the inner container can be prevented from rotating with respect to the outer container by opening and closing the cap. The attachment with the outer container can be prevented from being easily removed.
Further, when replacing the inner container, the inner container can be easily detached from the outer container by pushing down the inner container and pressing and rotating the elastic body.

It is explanatory drawing of the double container of this invention, (a) is a cross-sectional front view, (b) is a cross-sectional top view in the AA of (a). It is explanatory drawing of an outer container, (a) is a cross-sectional side view, (b) is a top view. It is explanatory drawing of an inner container, (a) is a partial cross section front view, (b) is a top view. It is explanatory drawing when an inner container is pushed down with respect to an outer container. FIG. 4 is a diagram for explaining the operation of the key-type concave groove and the engaging convex portion. (A) is when the engaging convex portion is pressed against the left lower end surface of the lateral groove portion of the key-shaped concave groove, and (b) is the engaging convex portion. (C) is when the engaging convex part is engaged with the engaging vertical groove part of the key-type concave groove, and (d) is when the engaging convex part is the key type. This is when it is pressed against the left end surface of the lateral groove portion of the groove. It is explanatory drawing of another Example of a key-shaped ditch | groove, (a) is an inclined groove part inclined in the lower right, (b) is an inclined groove part inclined in the upper right.

Next, an embodiment of the double container of the present invention will be described with reference to the drawings.
As shown in FIG. 1, A is an outer container, B is an inner container, C is an elastic body mounted between the outer container A and the inner container B, and D is a cap mounted on the inner container B.

  As shown in FIGS. 1 and 2, the outer container A is composed of a bottom wall 1 and an outer peripheral wall 2 erected on the outer edge of the bottom wall 1, and at a predetermined position on the upper surface of the bottom wall 1, The elastic body C is placed or bonded.

  On the inner periphery of the outer peripheral wall 2, an engagement step portion 3 is formed so as to have a peripheral surface 3 a and an upper surface 3 b formed on the upper portion and expanded to a predetermined height. The key-shaped groove 4 is recessed.

  The key-shaped concave groove 4 has an insertion vertical groove portion 4a that opens from the upper surface 3b and extends downward to a predetermined height when viewed from the inner peripheral side, and a horizontal groove portion 4b that extends rightward from the lower end of the insertion vertical groove portion 4a. And an engaging vertical groove portion 4c that extends upward from the upper right side of the horizontal groove portion 4b to a predetermined height.

  As shown in FIGS. 1 and 3, the inner container B is continuously provided at the bottom wall 5, the inner peripheral wall 6 standing on the outer edge of the bottom wall 5, and a predetermined height on the outer periphery of the inner peripheral wall 6. It consists of a flange 7 and an outer peripheral wall 8 suspended from the lower surface of the flange 7, and the contents are stored between the upper surface of the bottom wall 5 and the inner surface of the inner peripheral wall 6.

  A screw 9 is screwed on the outer periphery of the inner peripheral wall 6.

  When the inner container B is attached to the outer container A, the flange 7 slides within the peripheral surface 3a of the engagement step portion 3 of the outer peripheral wall 2 of the outer container A and When mounted on the container A, the upper surface is formed so as to be flush with the upper surface of the outer peripheral wall 2.

  On the outer periphery of the outer peripheral wall 8 of the inner container B, engaging projections 10 are arranged on the left and right sides as viewed from above at positions where they are inserted into the respective openings of the two key-shaped grooves 4 of the outer container A. Yes.

The engaging convex part 10 is formed to be movable within the horizontal and vertical widths of the insertion vertical groove part 4a, the horizontal groove part 4b, and the engaging vertical groove part 4c of the key-type groove 4 of the outer container A, and its outer shape is a square shape. Or it may be circular.
Further, the upper end of the engaging convex portion 10 is disposed on the outer periphery of the outer peripheral wall 8 at a height that presses the top surface of the engaging vertical groove portion 4c when the inner container B is attached to the outer container A.

  The elastic body C is formed so as to have a repulsive force by a spring, an elastic material, or the like, and the lower part is placed or bonded to the upper surface of the bottom wall 1 of the outer container A as shown in FIG. When the container B is mounted on the outer container A, the upper part is formed at a height that presses against the lower surface of the bottom wall 5 of the inner container B.

As shown in FIG. 1, the cap D includes a top wall 15 and an outer peripheral wall 16 that is suspended from the outer edge of the top wall 15.
The outer peripheral wall 16 is provided with a screw 17 on the inner periphery thereof, which is screwed with the screw 9 of the inner peripheral wall 6 of the inner container B.
Preferably, the packing P is attached to the lower surface of the top wall 15 and the inner peripheral upper end of the outer peripheral wall 16.

Next, the function and effect of the present invention will be described.
In assembling the container of the present invention, first, the inner container B is mounted in the outer container A.

  At that time, the inner container B and the outer container A are aligned, the inner container B is lowered into the outer container A, and the engaging protrusions 10 disposed on the left and right sides of the outer peripheral wall 8 of the inner container B. Is inserted from the opening of the insertion vertical groove portion 4a of the key-type concave grooves 4 on the left and right sides formed in the outer peripheral wall 2 of the outer container A.

  When the inner container B is lowered into the outer container A, the lower surface of the bottom wall 5 of the inner container B comes into pressure contact with the upper part of the elastic body C mounted on the upper surface of the bottom wall 1 of the outer container A, and the elastic body C itself The inner container B is pushed down into the outer container A as shown in FIG.

Next, the engaging projections 10 are engaged with the corresponding key-type grooves 4.
When the engaging convex portion 10 is inserted into the insertion vertical groove portion 4a, the lower end of the engaging convex portion 10 is on the left side of the lateral groove portion 4b of each key-shaped concave groove 4 as shown in FIG. The lower end surface of the inner container B is prevented from descending with respect to the outer container A.

  Next, when the inner container B is rotated clockwise while being pushed down with respect to the outer container A, the engaging convex part 10 slides on the lower end surface of each lateral groove part 4b, and FIG. As shown in (b), the inner groove B is pressed against the right end surface of the lateral groove 4b, and the rotation of the inner container B relative to the outer container A is stopped.

  Next, when the inner container B is released, the inner container B is pushed back by the repulsive force of the pressed elastic body C, and the engaging protrusions 10 engage the respective key-shaped grooves 4. The inner container B rises with respect to the outer container A as it enters the longitudinal groove 4c.

  As the inner container B rises, as shown in FIG. 5 (c), the upper ends of the engaging convex portions 10 come into pressure contact with the upper end surfaces of the respective engaging vertical groove portions 4c, as shown in FIG. 1 (a). Thus, the repulsive force of the elastic body C is also eliminated, and the rise of the inner container B is also stopped.

  The inner container B is prevented from slipping upward from the outer container A by the pressure contact between the upper end of the engaging convex part 10 and the upper end surface of each engaging vertical groove part 4c, and the inner container B is repelled by the repulsive force of the elastic body C. Prevents the inner container B from falling with respect to the outer container A, so that the inner container B is flush with the upper surface of the flange 7 of the inner container B and the upper surface of the outer peripheral wall 2 of the outer container A with respect to the outer container A. It is fixed with and attached.

  Finally, when the cap D is screwed onto the inner container B, the container is closed.

  The container of the present invention is always fixed by the repulsive force of the elastic body C so that the engaging convex portion 10 of the inner container B is positioned inside the engaging vertical groove portion 4c of the key-type concave groove 4 of the outer container A. Therefore, when the cap D is opened and closed, even if the inner container B tries to rotate together with the rotation of the cap D, the left and right side surfaces of the engaging convex portion 10 of the inner container B are The inner container B can be prevented from being detached from the outer container A because it is pressed against the left and right end faces of the engagement vertical groove 4c of the key-shaped concave groove 4 of the outer container A and prevented from rotating.

  Further, even if the cap D screwed to the inner container B is pulled upward, the upper end of the engaging convex portion 10 is prevented from coming out by being pressed against the upper end surface of the engaging vertical groove portion 4c, so that the inner container B It can prevent coming off from the outer container A together with the cap D.

  When the contents in the inner container B are no longer used, the used inner container B is removed from the outer container A, and when the new inner container B filled with the contents is mounted in the outer container A, it is used again. be able to.

  In order to remove the inner container B from the outer container A, first, the inner container B is pushed downward by pressing the elastic body C against the outer container A.

  When the lowering of the inner container B proceeds, the lower end of the engaging convex portion 10 of the inner container B is pressed against the lower end surface on the right side of the lateral groove portion 4b of each key-shaped concave groove 4 as shown in FIG. Then, the lowering of the inner container B with respect to the outer container A is stopped.

  Next, when the inner container B is rotated counterclockwise while being pushed down with respect to the outer container A, the engaging convex part 10 slides the lower end surface of each lateral groove part 4b, and FIG. As shown in FIG. 5, the inner groove B is pressed against the left end surface of the lateral groove 4b, and the rotation of the inner container B relative to the outer container A is stopped.

  Next, when the inner container B is released, the inner container B is pushed back by the repulsive force of the pressed elastic body C, and the engaging protrusions 10 are inserted vertically into the respective key-shaped grooves 4. The inner container B rises with respect to the outer container A as it enters the groove 4a.

  Finally, the inner container B can be easily detached from the outer container A by lifting the inner container B and taking out the engaging projection 10 from the opening of the insertion longitudinal groove 4a.

  Since the elastic body C is placed or bonded to the upper surface of the bottom wall 5 of the outer container A, the new inner container B filled with the contents can be mounted again on the outer container A and used.

  In the above embodiment, the key-shaped groove 4 of the outer peripheral wall 2 of the outer container A is opened from the upper surface 3b and extends downward to a predetermined height, and from the lower end of the insertion vertical groove 4a to the right It is formed of a lateral groove portion 4b extending in the direction and an engaging vertical groove portion 4c that extends upward from the upper right side of the lateral groove portion 4b to a predetermined height. As shown in FIG. 6B, the inclined groove portion 4a extends from the lower end of the insertion vertical groove portion 4a in the lower right direction and is formed with the engagement vertical groove portion 4c from the upper right side. It is good also as the key-shaped ditch | groove 4 used as the inclination groove part 4e which extends in an upper right direction from a lower end, and is formed with the engagement vertical groove part 4c from the upper right side.

  In the case of the inclined groove portion 4d shown in FIG. 6A, when the inner container B is mounted in the outer container A, the inner container B is pushed down into the outer container A, and the engaging convex portion 10 is inserted into the insertion vertical groove portion 4a. The lower end of the engaging convex portion 10 is pressed against the lower left end surface of the lateral groove portion 4b of each key-shaped concave groove 4, and the inner container B is pushed down by the inclination of the inclined groove portion 4d. On the other hand, the engaging projection 10 slides in the lateral direction, and the inner container B can be rotated clockwise with respect to the outer container A.

  And the engagement convex part 10 slides the inclination lower end surface of each inclination groove part 4d, and press-contacts to the right end surface of the inclination groove part 4d, and while the rotation with respect to the inside of the outer container A of the inner container B is stopped, The lowering of the inner container B relative to the outer container A is stopped.

  Next, when the inner container B is released, the inner container B is pushed back by the repulsive force of the pressed elastic body C, and the engaging protrusions 10 engage the respective key-shaped grooves 4. The inner container B rises with respect to the outer container A as it enters the longitudinal groove 4c, and the inner container B can be mounted in the outer container A.

  In the case of the inclined groove 4e shown in FIG. 6B, when removing the used inner container B from the outer container A, the inner container B is pressed against the outer container A by pressing the elastic body C, The lower end of the engagement convex portion 10 of the inner container B is pressed against the lower end surface on the right side of the inclined groove portion 4e of each key-shaped concave groove 4, and against the depression of the inner container B due to the inclination of the inclined groove portion 4e. Thus, the engaging projection 10 slides in the lateral direction, and the inner container B can be rotated counterclockwise with respect to the outer container A.

  And the engagement convex part 10 slides the inclination lower end surface of each inclination groove part 4e, presses the left end surface of the inclination groove part 4e, and while the rotation with respect to the inside of the outer container A of the inner container B is stopped, The lowering of the inner container B relative to the outer container A is stopped.

  Next, when the inner container B is released, the inner container B is pushed back by the repulsive force of the pressed elastic body C, and the engaging protrusions 10 are inserted vertically into the respective key-shaped grooves 4. The inner container B can be lifted with respect to the outer container A and can be easily removed from the outer container A by entering the groove 4a.

The inner container is attached to the outer container so as to be repelled upward via an elastic body, so that the inner container will be detached from the outer container even if it is rotated to open and close the cap. Can be prevented.
Further, it can be widely used as a double container that can be used by easily replacing the inner container.

A outer container B inner container C elastic body D cap P packing 1, 5 bottom wall 2, 8, 16 outer peripheral wall 3 engaging step 3 a peripheral surface 3 b upper surface 4 key-shaped concave groove 4 a insertion vertical groove 4 b horizontal groove 4 c engaging Vertical groove part 4d, 4e Inclined groove part 6 Inner peripheral wall 7 Flange 9, 17 Screw 10 Engaging convex part 15 Top wall

Claims (4)

A double container comprising an outer container, an inner container, and a cap screwed to the inner container,
An elastic body is attached between the outer container and the inner container,
The outer container consists of a bottom wall and an outer peripheral wall standing on the outer edge of the bottom wall,
A key-shaped groove is provided in the inner periphery of the outer peripheral wall,
The key-shaped concave groove includes an insertion vertical groove portion that opens downward from the upper surface of the outer peripheral wall, and an engagement vertical groove portion.
The inner container is composed of a bottom wall, an inner peripheral wall standing on the outer edge of the bottom wall, a flange connected to the outer periphery of the inner peripheral wall, and an outer peripheral wall suspended from the lower surface of the flange.
On the outer periphery of the outer peripheral wall, there is disposed an engaging convex portion that is movably formed in the key-shaped concave groove of the outer container,
The elastic body is formed such that the lower part is placed on the upper surface of the bottom wall of the outer container and the upper part is in pressure contact with the lower surface of the bottom wall of the inner container when the inner container is mounted on the outer container. A double container characterized by that.   The key-type concave groove includes an insertion vertical groove portion extending downward to a predetermined height, a horizontal groove portion extending laterally from the insertion vertical groove portion, and an engagement vertical groove portion extending upward from an end portion of the horizontal groove portion. The double container according to claim 1, wherein:   The key-type concave groove includes an insertion vertical groove portion extending downward to a predetermined height, an inclined groove portion extending in a horizontal oblique direction from the insertion vertical groove portion, and an engagement vertical groove portion extending upward from an end portion of the inclined groove portion. The double container according to claim 1, wherein On the upper part of the inner periphery of the outer peripheral wall of the outer container, an engagement step portion that is formed with a peripheral surface and an upper surface and is expanded to a predetermined height is provided circumferentially, and a key-type concave groove is disposed below the upper surface,
The flange of the inner container has an outer edge portion that slides within the peripheral surface of the engaging step portion of the outer container, and an upper surface that is flush with the upper surface of the outer peripheral wall of the outer container when the inner container is attached to the outer container. The double container according to any one of claims 1 to 3, wherein:

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