JP6429594B2 - Container with tamper-evident prevention mechanism - Google Patents

Description

  The present invention relates to a container having a lid and a container, and having a tamper-evident prevention mechanism.

  Many conventional containers have a simple fitting structure so that the lid can be removed immediately when it is desired to be used, and many have focused on ease of detachment and mounting of the lid. However, since the emphasis was placed only on the ease of removing and installing the lid as described above, as a result, anyone can easily remove the lid simply by pulling the lid, and it is illegal during distribution. It is pointed out that it may be opened.

  Therefore, in order to prevent unauthorized opening, a seal portion is formed on the outer peripheral edge of the lid that covers the opening of the container, and the lid portion is exposed to a predetermined portion that is exposed by separating the peeling portion that partially cuts off the seal portion. It is disclosed that the outer peripheral edge is recessed so that the fingertip can be locked (see, for example, Patent Document 1).

  However, in paragraph [0028] of Patent Document 1, “When a fingertip is hooked on the outer peripheral edge 2a of the lid 2 and lifted upward, a part of the lid 2 is opened. The entire lid 2 can be lifted as it is. However, in a container that opens the lid by hooking the fingertip on the outer periphery of the lid, such as children and the elderly, such as children and the elderly who are not capable of fingertip strength. It was difficult to open the lid.

  Further, in recent years, not only a container that seals the contents by crimping a sealing film such as an aluminum sheet on the opening, but the container mouth is sandwiched between the inner peripheral wall and the outer peripheral wall of the lid to maintain a sealed state. Containers are also on the market, and the fitting is stronger to improve the sealing between the container and the lid, making it more difficult to open the lid for the weak without fingertips. It was.

Utility Model Registration No. 3108820

  An object of the present invention is to solve the above-mentioned problem, that is, a container with a tamper-evident prevention mechanism that can easily open a lid even for a weak person with no fingertip force, such as a child or an elderly person. Is to provide.

As a means for solving the above problems, a container with an unauthorized opening prevention mechanism according to the present invention
A container body provided with an opening cylinder portion continuously provided on a side peripheral wall and an upper portion thereof;
A container with a tamper-evident prevention mechanism provided with a lid that closes an opening surrounded by the opening cylinder,
The container body is provided with a ring body that is erected through a weakened portion that is provided with a container body flange piece on the outer periphery of the boundary between the side peripheral wall and the opening cylindrical portion and that can be cut out over the entire circumference of the container body flange piece. ,
The lid body is fitted to the peripheral ridge of the opening cylinder portion on the outer peripheral wall suspended from the lid flange piece that is provided around the outer periphery of the inner peripheral wall assembled to the inner periphery of the opening cylinder portion. A locking protrusion is provided,
When opening the lid, the weakened portion is broken by pulling the ring tab in the circumferential direction, the ring body is removed from the container body, and the hook piece suspended from the container body flange piece is removed. By pushing in the radial direction, the container flange piece on the upper surface of the hook piece is displaced upward with the lower end from the lower end of the outer peripheral wall as a fulcrum, so that the lower end of the outer peripheral wall is pushed up. The engagement with the locking projection is released.

  In this configuration, by pushing the hook piece, the lower end portion of the outer peripheral wall is pushed up as the container flange piece on the upper surface of the hook piece is displaced upward, and the engagement between the circumferential protrusion and the locking protrusion is released. Therefore, even if it is a weak person with no fingertip force, the lid can be easily opened.

  Further, in another container with a tamper-evident prevention mechanism according to the present invention, a container body flange piece portion serving as a base of a hook piece is surrounded by a support frame, and a gap is formed between the container body flange piece portion and the side peripheral wall. Is provided.

  In the above structure, the container flange piece and the side peripheral wall which are the bases of the hook pieces are not connected to each other. Therefore, the container flange piece easily displaces upward, and the lid and container even with a weak force. It is possible to release the fitting.

  Further, in another container with an unauthorized opening prevention mechanism according to the present invention, the side peripheral wall at a position corresponding to the hook piece has a reduced diameter shape.

  In the above structure, the side peripheral wall at the position corresponding to the hook piece has a reduced diameter shape, so that the hook piece can be prevented from coming into contact with the side peripheral wall of the container body and pushing up the lower end portion of the outer peripheral wall. In addition, the pushing distance in the radial direction can be increased, the upward displacement of the container flange piece can be increased, and the push-up amount of the lower end portion of the outer peripheral wall can also be increased.

The above-described configuration of the present invention has the following effects.
In the present invention, since the fitting of the lid body and the container body can be released by pushing the hook piece in order to open the lid body, the lid body can be opened easily, and the fingertips of children, the elderly, etc. Even a weak person without power can easily open the lid.

  Moreover, since this invention has the ring body used as a virgin part, it is possible to visually recognize from the exterior the unauthorized opening of a container.

  Furthermore, in the present invention, since there is a gap between the container body flange piece portion which becomes the base of the hook piece and the side peripheral wall, the container body flange piece can be easily displaced upward, even with a weak force. The fitting between the lid body and the container body can be released.

  Furthermore, in the present invention, since the side peripheral wall at the position corresponding to the hook piece has a reduced diameter, the lower end portion of the outer peripheral wall can be reliably pushed up. Moreover, the pushing distance to radial direction can be taken long, and the pushing-up amount of the lower end part of an outer peripheral wall can also be increased.

It is the top view (a) which shows embodiment of the container which concerns on this invention, and a vertical front view (b). It is the top view (a) when a hook piece is made into the front, and a front view (b). It is a top view of the container flange piece centering on the hook piece. It is the fragmentary longitudinal cross-sectional view (a) near a hook piece, and the partial longitudinal cross-sectional view (b) near a hook piece when opening a cover body.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1A is a top view showing an embodiment of a container according to the present invention, FIG. 1B is a longitudinal front view thereof, and FIG. 2A is a top view when a hook piece of the container is front, FIG. 3 is a front view, FIG. 3 is a top view of the container flange piece centering on the hook piece, FIG. 4 is (a) a partial longitudinal sectional view in the vicinity of the hook piece, and (b) a hook piece when the lid is opened. It is a partial longitudinal cross-sectional view of the vicinity. In addition, each central axis of each component is located on a common axis. In the present embodiment, this common axis is referred to as a container axis O, a direction orthogonal to the container axis O is a radial direction, and a direction around the container axis O is a circumferential direction.

  The container 1 in the embodiment shown in these drawings is formed by injection molding or the like of synthetic resin, and includes a container body 2 having an opening at the upper end and a lid 3 that totally closes the opening. It is comprised. The container 1 composed of the container body 2 and the lid body 3 stores contents such as food such as yogurt and butter.

  The container body 2 has a side peripheral wall 4 that gradually increases in diameter upward and forms a space inside thereof, and is connected to the bottom wall 5 at the lower end portion of the side peripheral wall 4 to thereby form a bottomed cylindrical shape. Form a storage space. On the upper part of the side peripheral wall 4, there is an open cylinder part 6 that is provided continuously, and a wide-opening part surrounded by the open cylinder part 6 is formed. On the outer periphery of the opening cylinder portion 6, a ridge 14 that is a fitting portion with the lid 3 is provided. A container body flange piece 7 is provided around the outer periphery in the vicinity of the boundary portion between the open cylindrical portion 6 and the side peripheral wall 4 below the protrusion 14, and is partially cut off. Under the outer end of the container body flange piece 7, a hanging piece 8 is provided over almost the entire circumference (about 330 degrees), and the remaining circumference (about 30 degrees) helps open the lid 3. A hook piece 9 is provided. As shown in FIG. 3, the hook piece 9 is surrounded by a support frame 13 at a container flange piece 7 serving as a base, and a gap is formed between the container flange piece 7 and the side peripheral wall 4. S is provided. On the other hand, on the upper side of the outer end portion of the container body flange piece 7, the ring body 11 is erected via a weakening portion 10 that can be cut out over the entire circumference. On the ring body 11, a knob 12 for projecting a fingertip when removed from the container body 2 is projected (in an L shape) and is formed at an upper position of the hook piece. The knob 12 may be formed by providing a cut or slit in the ring body 11, and the shape is not limited.

The lid 3 has a lid plate 20 at the top and is suspended from the outer periphery of the lid plate 20 so as to be assembled to the inside of the opening cylinder portion 6 of the container body 2 (to seal the inner periphery of the opening cylinder portion 6). A peripheral wall 21 is provided. From the middle of the inner peripheral wall 21, a lid flange piece 22 is provided around the outer flange shape, and an outer peripheral wall 23 is suspended from the lid flange piece 22. The outer peripheral wall 23 is provided with a locking projection 24 that fits with the protrusion 14. The outer peripheral wall 23 is accommodated between the opening cylinder portion 6 of the container body 2 and the ring body 11 and is fitted by the protrusion 14 and the locking protrusion 24.
In addition, since the opening cylinder part 6 is inserted | pinched by the inner peripheral wall 21, the cover flange piece 22, and the outer peripheral wall 23 of the cover body 3, it is enough even if it does not use an aluminum seal etc. for the upper end of the opening cylinder part 6. It has a structure that can maintain hermeticity.

  Next, a method for opening the lid of the container with an unauthorized opening prevention mechanism will be described.

  The container with an unauthorized opening prevention mechanism of the present invention is in a state in which the ring body 11 is continuously provided through the weakened portion 10 on the entire upper periphery of the outer end portion of the container body flange piece 7. When the user pulls the knob 12 in the circumferential direction with the fingertip to open the lid 3, the weakened portion 10 is broken and the ring body 11 is removed from the container body 2.

  As shown in FIG. 4 (a), the lid 3 is firmly assembled by engaging the locking projection 24 over the protrusion 14 at the fitting portion with the container body 2 and fitting in an undercut shape. Yes. In this fitted state, it is possible to open the lid 3 by placing the fingertip on the lower surface of the lid flange piece 22 and pulling it up, but an appropriate force is required for the fingertip.

  Therefore, in the present invention, as shown in FIG. 4B, by hooking the hook piece 9 suspended from the container flange piece 7 in the radial direction, the container flange on the upper surface of the hook piece 9 with the support frame 13 as a fulcrum. As the piece 7 is displaced upward, the lower end portion of the outer peripheral wall 23 is pushed up, and the locking projection 24 gets over the ridge 14 and part of the fitting over the entire circumference can be released. Thereafter, the lid 3 is lifted by placing the fingertip on the lower surface of the lid flange piece 22 and the lid 3 is lifted, and the fitting is completely released starting from the part where the fitting is partially released, and the lid 3 is opened. Can do. At this time, since part of the fitting has already been released, the fingertip force applied to the lower surface of the lid flange piece 22 can be reduced as compared with the fitting state. Therefore, even a weak person with no fingertip force such as a child or an elderly person can surely and easily open the bag.

  In order to prevent the hook piece 9 from coming into contact with the side peripheral wall 4 of the container body 2 and pushing up the lower end of the outer peripheral wall 23 when the hook piece 9 is pushed in the radial direction, the side peripheral wall 4 (hook piece It is desirable that the position corresponding to 9) has a shape whose diameter is reduced downward (for example, a tapered shape, a curved shape, a step shape, a concave portion, etc.). Due to this downwardly reduced diameter, the radial pushing distance can be increased, the amount of upward displacement of the container flange piece 7 can be increased, and the lower end of the outer peripheral wall 23 can be pushed up reliably.

  As mentioned above, although the structure of this invention and its effect were demonstrated along embodiment, embodiment of this invention is not limited to the said embodiment.

  In the said embodiment, although demonstrated using what provided the hook piece 9 in one place in the container body 2, this invention is not restricted to this, You may provide two hook pieces 9 in line symmetry, For example, when the container body 2 is gripped, the first hook piece 9 is pushed in the radial direction with the thumb, and the second place is pushed in the radial direction with another finger, whereby the protrusion 14 and the locking protrusion 24 are Can be released at two places. By releasing the fitting at two locations, the force of the finger applied to the lower surface of the lid flange piece 22 when the lid 3 is opened can be further reduced as compared with the hook piece 9 having a single location. And the lid can be opened more easily.

  In the above-described embodiment, the bottomed cylindrical container body has been described. However, other shapes such as a bottomed oval cylindrical shape or a bottomed quadrangular shape may be used, and the shape of the corresponding lid body is also oval. Other shapes such as a shape or a square shape may be used.

  As described above, the container with a tamper-evident prevention mechanism according to the present invention has a tamper-evident prevention function because the lid can be easily opened even by a weak person with no fingertip force such as a child or an elderly person. Applications in the container field can be expanded in a wider area.

DESCRIPTION OF SYMBOLS 1; Container 2; Container body 3; Lid body 4; Side peripheral wall 5; Bottom part 6; Opening cylinder part 7; Container body flange piece 8; Hanging piece 9; Hook piece 10; Support frame 14; ridge 20; lid plate 21; inner peripheral wall 22; lid flange 23; outer peripheral wall 24; locking projection O; container shaft S;

Claims (3)

A container body (2) provided with a side peripheral wall (4) and an open cylindrical portion (6) provided continuously therewith;
A container with a tamper-evident prevention mechanism comprising a lid (3) for closing an opening surrounded by the opening cylinder (6),
The container body (2) is provided with a container body flange piece (7) on the outer periphery of the upper portion, and a ring body standing up via a weakened portion (10) that can be cut off on the upper side of the container body flange piece (7) ( 11)
The lid (3) hangs the outer peripheral wall (23) from a lid flange piece (22) that is provided in an outer casing shape from an inner peripheral wall (21) assembled to the inner periphery of the opening cylinder (6). The outer peripheral wall (23) is received between the opening cylinder (6) and the ring body (11), and is engaged with the protrusion (14) of the opening cylinder (6). Protrusions (24) are provided,
When opening the lid (3), the weakened portion (10) is broken by pulling the knob (12) of the ring (11) in the circumferential direction, so that the ring (11) becomes the container (2). ) And the hook piece (9) suspended from the container body flange piece (7) is pushed in in the radial direction, so that the hook piece (9) is supported from the lower end of the outer peripheral wall (23) as a fulcrum. ) The container flange piece (7) on the upper surface is displaced upward, so that the lower end of the outer peripheral wall (23) is pushed up, and the fitting between the ridge (14) and the locking projection (24) is released. A container with an unauthorized opening prevention mechanism.
  A container body flange piece (7) portion, which is a base of the hook piece (9), is surrounded by a support frame (13), and a gap (between the container body flange piece (7) portion and the side peripheral wall (4) ( The container with a tamper-evident prevention mechanism according to claim 1, wherein S) is provided.   The container with an unauthorized opening prevention mechanism according to claim 1 or 2, wherein the side peripheral wall (4) at a position corresponding to the hook piece (9) has a reduced diameter shape.

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