Container

Abstract

The present disclosure provides a container. The container comprises: a container body comprising a first outer wall and a first connecting element; the cover is used for covering the container body, the cover comprises a second outer wall and a second connecting element with a hinge part, the second connecting element of the cover is jointed with the first connecting element of the container body, so that the cover can rotate relative to the container body, and the hinge part is arranged on the second outer wall. At least one anti-tilt rib is provided on at least one of a first outer wall of the container body and an outer surface of the second connecting element facing the first outer wall.

Description

Technical Field

[0001] The present disclosure relates to a container. Background Art

[0002] The above-mentioned container is generally used to hold products stored loosely, such as drugs, pills, tablets, test strips (such as diagnostic test strips), granular or even powdery products, etc. The container consists of a container body and a lid, and is configured to be selectively opened or closed to receive or remove products. In order to prevent the stored products from having a shortened shelf life or becoming invalid due to moisture, contamination, etc., the stability of the fit between the lid and the container body is crucial. Summary of the Invention

[0003] According to a first aspect of the present disclosure, there is provided a container, particularly suitable for products stored loosely. The container includes: a container body including a first outer wall and a first connecting element; a lid for covering the container body, the lid including a second outer wall and a second connecting element having a hinge member, wherein the second connecting element of the lid engages with the first connecting element of the container body such that the lid can rotate relative to the container body about the hinge member, wherein the first connecting element includes a plate spaced from the first outer wall by a space, and a holding element is provided in the space between the plate and the first outer wall, wherein the second connecting element includes a U-shaped engaging part forming a groove and having an outer side provided with a coupling element, wherein the plate is configured to be received in the groove of the U-shaped engaging part and surrounded by the U-shaped engaging part from below, wherein the coupling element engages above the holding element, and wherein at least one anti-tilting rib is provided on at least one of the first outer wall of the container body and the outer surface of the second connecting element facing the first outer wall, and the at least one anti-tilting rib is axially downwardly offset relative to the engagement surface between the coupling element and the holding element in the longitudinal axis direction of the container body.

[0004] According to one or more embodiments of the present disclosure, a container with a stable fit can be provided. By providing at least one anti-tilting rib on at least one of the first outer wall of the container body and the outer surface of the second connecting element of the lid, the second connecting element of the lid can form a stable fit with the first connecting element of the container body. In particular, if the user fully opens the lid, i.e., the lid is opened more than 180°, a tight contact is established between the at least one anti-tilting rib and the facing surface to prevent the second connecting element of the lid from rotating and disengaging from the first connecting element of the container body, thereby ensuring a stable fit between the two.

[0005] In addition, since the U-shaped engaging member of the lid extends around the plate of the container body from below, a container can be provided in which the lid and the container body are securely and tightly engaged, thereby improving the sealing performance of the container. By engaging from below, the force applied when closing the lid and the force acting on the closed lid always act in the engaging direction, thereby securely and tightly engaging the lid and the container body and generating a high lid adhesion force. In particular, when closing the lid, for example, the force generated by compressing the sealing device between the lid and the container body, or the force generated by the catching mechanism when pressing the thumb tab, is received by the hinge member and converted into a force in the engaging direction. In other words, the force acting on the hinge member during the closing process, especially the elastic force, always acts in the engaging direction.

[0006] When the lid is placed on the opening of the container body, the lid is usually pressed down at the thumb tab in the area opposite to the hinge member. Accordingly, when the lid is pressed down, a lever action acts on the hinge member, thereby generating a force substantially along the longitudinal axis of the container body in the direction from the container base of the container body to the opening. Therefore, the acting force on the hinge member acts in the engaging direction of the U-shaped engaging member around the plate of the container body, causing the U-shaped engaging member to be pressed into a tighter engagement. In particular, the bottom of the U-shaped engaging member can engage the lower side of the plate facing the container base of the container body. The U-shaped engaging member of the lid can hook the plate of the container body like a hook, thereby providing a downward pulling force on the lid. This enables the lid to be firmly and tightly placed on the container body, achieving a better sealing effect.

[0007] According to one embodiment, at least one anti-tilting rib is configured to form an interference fit between the first outer wall of the container body and the second connecting element of the lid in a region that is axially downwardly offset relative to the engagement surface between the coupling element and the holding element in the direction of the longitudinal axis of the container body. This tight contact that is axially downwardly offset relative to the engagement surface between the coupling element and the holding element can improve the efficiency of preventing the second connecting element of the lid from rotating and disengaging from the first connecting element of the container body, thereby improving the stability of the fit between the two.

[0008] According to one embodiment, at least one anti-tilting rib is provided on the first outer wall of the container body. Accordingly, a tight contact is established between at least one anti-tilting rib on the container body and the facing surface of the lid to prevent the second connecting element of the lid from rotating and disengaging from the first connecting element of the container body when the user opens the lid, especially when forcing the lid to open more than 180°.

[0009] According to one embodiment, at least one anti-tilting rib is provided on the outer surface of the second connecting element. Accordingly, a tight contact is established between at least one anti-tilting rib on the lid and the facing surface of the container body to prevent the second connecting element of the lid from rotating and disengaging from the first connecting element of the container body when the user opens the lid, especially when forcing the lid to open more than 180°.

[0010] According to one embodiment, the container includes an anti-tilting rib provided on the first outer wall of the container body and two anti-tilting ribs provided on the outer surface of the second connecting element. According to one embodiment, the two anti-tilting ribs provided on the outer surface of the second connecting element are configured to engage with the first outer wall of the container body on either side of the anti-tilting rib provided on the first outer wall of the container body. The two anti-tilting ribs provided on either side of the anti-tilting rib of the container body on the lid can also ensure the anti-twisting function by eliminating the lateral gap around the anti-tilting rib of the container body, and thereby prevent the lid from twisting about an axis perpendicular to the plane tangent to the first outer wall of the container body at the level of the first and second connecting elements.

[0011] According to one embodiment, the distance between the engaging surface and at least one anti-tilting rib is such that the coupling element and the retaining element cannot be disengaged by tilting the second connecting element of the lid in a direction perpendicular to the plane tangent to the first outer wall of the container body at the level of the first and second connecting elements.

[0012] According to one embodiment, in the case where the plate of the first connecting element is received in the groove, the plate is surrounded by a U-shaped engaging member on its inner and outer sides and on its lower side facing the container base of the container body. In this way, the plate of the first connecting element is tightly clamped by the U-shaped engaging member of the second connecting element as if it were caught in a cage, which allows the lid to be well-oriented relative to the container body through a single pair of local connecting elements.

[0013] According to one embodiment, the container body includes a container base and a container opening, and the second connecting element of the lid engages with the first connecting element of the container body in the engaging direction from the container base to the container opening in such a way that, when the lid is closed on the container body, the acting force of the second connecting element on the first connecting element is formed in the engaging direction. By providing the engagement from below, the acting force when closing the lid and the acting force acting on the closed lid will always act in the engaging direction, thereby enabling the lid and the container body to be safely and tightly engaged and generating a high lid adhesion force.

[0014] According to one embodiment, the retaining element of the container body is configured as a protrusion extending outward from the first outer wall of the container body or a recess extending inward in the first outer wall of the container body. In either case, the connecting element of the lid is configured to engage above the retaining element, thereby preventing the plate of the first connecting element from being withdrawn from the U-shaped engaging part of the second connecting element through the upwardly opening U-shaped opening.

[0015] According to one embodiment, the engagement surface between the coupling element of the lid and the retaining element of the container body is substantially perpendicular to the longitudinal axis of the container body. In this way, the stability of the engagement between the coupling element of the lid and the retaining element of the container body can be ensured.

[0016] According to one of the embodiments, the hinge element is located between the second outer wall of the lid and the U-shaped engaging part. According to one embodiment, the first connecting element of the container body is axially downwardly positioned relative to the free edge of the container body. According to one embodiment, in the open configuration of the lid, the second connecting element including the hinge element is located at or below the free edge of the container body. According to one embodiment, the engagement surface between the coupling element of the lid and the retaining element of the container body is axially downwardly positioned relative to the free edge of the container body. In the open configuration of the lid, the second connecting element including the hinge element is located at or below the free edge of the container body, such that the free edge of the container body can be used as a reference on the assembly line. In particular, the free edge of the container body is preferably able to abut against a surface in the open state of the lid without being interfered with by the hinge element or any connecting element, for example for automatically loading products such as medicines, pills, tablets, test strips, etc. into the container body or for other operations. The hinge element having the above characteristics can further enhance the adhesion of the lid and improve the sealing performance when the lid is sealed with the container body.

[0017] According to one embodiment, the hinge element includes an elastic foil hinge element. Advantageously, such an aluminum foil hinge element provides a well-defined axis of rotation for pivoting the lid. According to one embodiment, the axis of rotation of the hinge element is located at or below the free edge of the container body, thereby allowing the free edge of the container body to be used as a reference on the assembly line, for example for the automatic loading of the container body. Advantageously, compared with an integral structure, the engagement between the first connecting element and the second connecting element provides both an accurate mounting position for the lid and facilitates the replacement of the lid. The hinge element having the above characteristics can also further enhance the adhesion of the lid and improve the sealing performance when the lid is sealed with the container body.

[0018] According to one embodiment, the outer surface of the outside of the U-shaped engaging part has a curved shape corresponding to the shape of the outer surface of the first outer wall of the container body. This is conducive to the U-shaped engaging part engaging around the plate of the first connecting part and is conducive to the locking and fastening of the coupling element of the lid with the retaining element of the container body.

[0019] According to one embodiment, the first connecting element of the container body includes at least one anti-twist rib configured to laterally abut against the U-shaped engaging part of the lid, thereby contributing to improving the installation stability. Having at least one anti-twist rib on the first connecting element of the container body makes it possible to eliminate the lateral clearance around the U-shaped engaging part of the lid, thus preventing the lid from twisting about an axis perpendicular to the plane tangent to the first outer wall of the container body at the level of the first and second connecting elements.

[0020] According to one embodiment, the material forming the lid is different from the material forming the container body. In the above embodiment, materials most suitable for their respective functions can be selected for the lid and the container body, especially in terms of the stability of the fit between the lid and the container body, and in terms of the barrier performance, to protect the product stored in the container from the external environment, especially moisture and / or oxygen.

[0021] According to one embodiment, the material forming the lid has a greater yield elongation than the material forming the container body. In this way, an elastic force is generated when the thumb tab of the lid is pressed, and then this elastic force is received by the hinge member and converted in the engaging direction, thereby promoting the stability of the fit between the lid and the container body.

[0022] According to one embodiment, the lid includes an inner skirt located inwardly from the second outer wall of the lid, wherein the inner skirt is configured to form a seal on the inner surface of the first outer wall of the container body when the lid is closed on the container body. Thus, the seal between the lid and the container body is ensured by the cooperation between the inner skirt of the lid and the inner surface of the first outer wall of the container body.

[0023] According to one embodiment, the inner skirt includes an outward-facing sealing portion for sealing on the inner peripheral groove of the container body. According to one embodiment, the outward-facing sealing portion of the inner skirt includes a highest position that seals on the inner peripheral groove of the container body when the lid is in the closed state on the container body, thereby forming a seal in a sealing line pattern. According to one embodiment, when the lid is in the closed state on the container body, the highest position of the inner skirt and the inner peripheral groove can provide the only seal between the lid and the container body.

[0024] According to one embodiment, in the case where the lid is in the closed state on the container body, at least one protruding element provides a local reduction of the surrounding clearance between the first outer wall of the container body and the second outer wall of the lid, wherein each protruding element is provided on one of the outer surface of the first outer wall of the container body and the inner surface of the second outer wall of the lid.

[0025] According to one embodiment, each protruding element is provided on one of the outer surface of the first outer wall of the container body and the inner surface of the second outer wall of the lid, and when the lid is in the closed state, it does not face, interact with, or contact any other protruding element that may be on the other surface of the outer side of the outer peripheral body wall and the inner side of the outer peripheral lid wall.

[0026] Advantageously, when the lid is in the closed state, at least one protruding element limits the horizontal displacement of the lid, especially the inner skirt, relative to the container body. That is, even when a lateral force is applied to the closed lid, at least one protruding element allows the lid to be accurately positioned on the container body during its opening or closing, and allows the optimization of the contact between the inner skirt and the container body, thereby improving the sealing efficiency. The provision of at least one protruding element can avoid or greatly reduce the translation of the lid relative to the container body (especially during the opening of the lid when a force is applied, such as to the thumb tab and the lid tends to move towards the hinge member), at which time the U-shaped engaging member may open due to the movement of its inner and outer sides away from each other. In this way, in addition to the function of at least one anti-tilting rib to avoid the risk of the second connecting element of the lid disengaging from the first connecting element of the container body due to the rotation of the U-shaped engaging member, the risk of the second connecting element disengaging from the first connecting element due to the opening of the U-shaped engaging member can also be avoided.

[0027] The movement of the lid towards the hinge member can also reduce the dimensional interference between the sealing portion of the inner skirt and the inner peripheral groove of the container body, and reduce the force required to open the lid. This may result in, for example, the inadvertent opening of the container during transportation and may cause damage to the product stored in the container. Due to this at least one protruding element, the opening force can be more reliably controlled by the elastic characteristics of the inner skirt of the lid and the depth of the inner peripheral groove of the container body, and is less affected by all these surface dimensional tolerance variations that are inevitable in mass production. Another advantage of this at least one protruding element is that the opening force can be more precisely adjusted, so that while preventing the accidental opening of the container, the force required for the user to open the lid remains comfortable.

[0028] According to one embodiment, the first connecting element extends outward from the first outer wall of the container body, and the second connecting element extends outward from the second outer wall of the lid. With this arrangement, the first connecting element and the second connecting element can ensure a clear relative position between the container body and the lid, as well as a good fit between them. The movement guiding property of the lid relative to the container body is improved, thereby also improving the sealing performance of the container.

[0029] According to one embodiment, when the lid is closed on the container body, as determined by the standard method ASTM D7709, the moisture permeability rate W of the container is less than 2 mg / d (mg / day) at 40 °C and 75% relative humidity (RH), preferably less than 1 mg / d, and preferably less than 0.5 mg / d.

[0030] According to one embodiment, the moisture permeability rate of the container depends on the size and structural material of the container. Consider the following factors:

[0031] - "W", which is the moisture permeability rate of the container at 40 °C

[0032] and 75% relative humidity (RH) with the lid closed on the container body, as determined by the standard method ASTM D7709,

[0033] - "S", which is the total outer surface area of the container in m 2 ,

[0034] - "e", which is the average thickness of the container in mm,

[0035] Under the conditions of 40 °C and 75% relative humidity (RH), with the lid closed on the container body, the moisture permeability of the container (defined as P = W·e / S) is less than 220 mg.mm / m 2 .d (mg.mm / m 2 .day), preferably less than 160 mg.mm / m 2 .d, and preferably less than 120 mg.mm / m 2 .d. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] To more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can also be obtained from the structures shown in these drawings. The drawings are as follows:

[0037] Figure 1 is a schematic perspective view showing a container according to some embodiments of the present disclosure;

[0038] Figure 2 is showing Figure 1 the lid of the container in;

[0039] Figure 3 is showing Figure 2 the enlarged view of region III of the lid in;

[0040] Figure 4 is showing Figure 2Enlarged view of region III of the lid from another angle in

[0041] Figure 5 is a sectional view taken along plane V-V according to Figure 3 ;

[0042] Figure 6 shows Figure 1 a schematic perspective view of the container body of the container in

[0043] Figure 7 shows Figure 6 an enlarged view of region VII of the container body in

[0044] Figure 8 shows Figure 7 an enlarged view of region VII of the container body from another angle in

[0045] Figure 9 is a sectional view taken along plane IX-IX according to Figure 7 ;

[0046] Figure 10 shows Figure 1 a sectional view of the lid and the first connecting element of the container body in

[0047] Figure 11 shows Figure 10 an enlarged view of region XI in , in another side view of this region, it shows that in the absence of the anti-tilting rib, the second connecting element of the lid has a risk of falling off;

[0048] Figure 12 is an enlarged view of a container according to another embodiment of the present invention, similar to Figure 11 , wherein the distance (d) between the anti-tilting rib on the outer surface of the first outer wall of the container body and the engagement surface (S) is larger, and another side view also shows that in the absence of the anti-tilting rib, the second connecting element of the lid has a risk of falling off. Detailed Embodiments

[0049] Next, the technical solutions in the embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0050] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present disclosure are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0051] In the present disclosure, unless otherwise clearly specified and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "connection" may refer to direct connection or indirect connection through an intermediate medium, and may refer to the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0052] In the present disclosure, unless otherwise stated, all numbers representing component parameters, technical effects, etc. used in this specification and claims should be understood to be modified by the term "about" or "substantially" in any case. Therefore, unless there is a contrary indication, the numerical parameters listed in the following specification and appended claims are approximate values. For those skilled in the art, they can vary according to the desired properties and effects sought through the present disclosure, and each numerical parameter should be interpreted according to the number of significant digits and the conventional rounding method or the manner understood by those skilled in the art.

[0053] In the present disclosure, the terms used in the description of various examples are only for the purpose of describing specific examples and are not intended to be restrictive. Unless the context clearly indicates otherwise, if the number of elements is not specifically limited, the element can be one or more. In addition, the term "and / or" used in the present disclosure covers any one and all possible combinations of the listed items. In the related art, when the lid is fully opened, the connecting element of the lid may be disengaged from the connecting element of the container body. Especially when the material of the container body is not as hard as the material of the lid, this is even more the case. For example, this disengagement phenomenon occurs when using a lid made of polypropylene (PP) and a container body made of high-density polyethylene (HDPE).

[0054] In view of this, the present disclosure provides a container with stable cooperation. By providing at least one anti-tilting rib on at least one of the first outer wall of the container body and the outer surface of the second connecting element, even if the user opens the lid, the second connecting element of the lid can still form a stable cooperation with the first connecting element of the container body. In particular, if the opening angle of the lid is forced to exceed 180°, a tight contact will be formed between at least one anti-tilting rib and the facing surface to prevent the second connecting element of the lid from rotating and disengaging from the first connecting element of the container body.

[0055] The container provided according to the present disclosure can be used to hold products stored loosely, such as medicines, pills, tablets, test strips, granular or even powdery products, etc. In some examples, the container can be a food packaging box or a medicine packaging box, etc.

[0056] The following will refer to Figures 1 to 12 to describe in detail embodiments of the container of the present disclosure. It should be understood that the dimensions of the elements shown in the figures are illustrative and do not represent the actual dimensions of the elements.

[0057] As shown in the figures corresponding to the embodiments of the present invention, the container 1000 can include a container body 10 and a lid 20. The container body 10 can include a first outer wall 11 and a first connecting element 12. The lid 20 is used to cover the container body 10, and the lid can include a second outer wall 21 and a second connecting element 22 having a hinge member 24. The second connecting element 22 of the lid 20 engages with the first connecting element 12 of the container body 10, enabling the lid 20 to rotate relative to the container body 10 about the hinge member 24.

[0058] The first connecting element 12 of the container body 10 includes a plate 124, which is separated from the first outer wall 11 of the container body 10 by a space 121. The first connecting element 12 further includes a retaining element 123, which is disposed in the space 121 between the plate 124 and the first outer wall 11.

[0059] The second connecting element 22 of the lid 20 includes a U-shaped engaging member 23, and the U-shaped engaging member 23 forms a groove 231 defined by three sides of the U-shape (including an inner side 230, an outer side 232, and a bottom side 233). A coupling element 223 is provided on the outer side 232 of the U-shaped engaging member 23 of the lid.

[0060] The plate 124 of the container body is configured to be received in the groove 231 of the U-shaped engaging member 23 while being surrounded by the U-shaped engaging member from below, wherein the coupling element 223 engages above the retaining element 123 of the container body.

[0061] At least one anti-tilting rib 111, 221a, 221b is further provided on at least one of the first outer wall 11 of the container body 10 and the outer surface 2321 of the second connecting element 22 facing the first outer wall 11, and the at least one anti-tilting rib is axially downward offset by a distance d in the direction of the longitudinal axis X of the container body 10 relative to the engagement surface S between the coupling element 223 and the retaining element 123.

[0062] According to the above embodiments, the second connecting element 22 of the lid 20 can form a stable fit with the first connecting element 12 of the container body 10. First, when the plate 124 of the first connecting element 12 of the container body is received in the groove 231 of the second connecting element 22 of the lid, the plate 124 is surrounded by the U-shaped engaging member 23 on its inner side 1242, outer side 1244, and lower side 1243 facing the container base 14 of the container body. In this way, the plate 124 of the first connecting element 12 is tightly clamped by the U-shaped engaging member 23 of the second connecting element 22 as if caught in a cage, so that the lid 20 is well positioned relative to the container body 10 through a single pair of local connecting elements 12 and 22.

[0063] In addition, the coupling element 223 of the lid 20 engages above the retaining element 123 of the container body, preventing the plate 124 of the first connecting element 12 from being withdrawn from the U-shaped engagement portion 23 through the upward-opening U-shape, so that the lid and the container body are securely and tightly engaged through the fit between their connecting elements 12 and 22.

[0064] In addition, when the user opens the lid 20, especially when the opening of the lid 20 is forced to exceed 180°, a tight contact area T is formed between at least one anti-tilting rib 111, 221a, 221b and the facing surface to prevent the second connecting element 22 of the lid 20 from rotating and disengaging from the first connecting element 12 of the container body 10, thus ensuring a stable fit between the two.

[0065] Since the U-shaped engaging member 23 of the lid 20 extends around the plate 124 of the container body 10 from below, the sealing performance of the container is improved. Through the engagement from below, the closing force and the closing force when closing the lid always act in the engagement direction, so that the lid 20 and the container body 10 are tightly engaged and a high lid adhesion is generated. Especially when closing the lid 20, for example, the force generated by the compression of the sealing device between the lid 20 and the container body 10, or the force generated by the catching mechanism when pressing the thumb tab 26, will be received by the hinge member 24 and converted into a force in the engagement direction. In other words, during the closing process, the force acting on the hinge member 24, especially the elastic force, always acts in the engagement direction.

[0066] When the lid is closed on the opening 13 of the container body 10, the downward pressing of the lid 20 typically occurs at the thumb tab in the region opposite the hinge member 24. Correspondingly, when the lid is pressed down, a lever action acts on the hinge member 24, thereby generating a force that is substantially parallel to the longitudinal axis X of the container body 10 in the direction from the container base 14 towards the container opening 13. Thus, the acting force on the hinge member 24 acts in the engaging direction of the U-shaped engaging member 23 of the plate 124 of the container body 10, causing the U-shaped engaging member 23 to be pressed into a tighter engagement. In particular, the bottom side 233 of the U-shaped engaging member 23 can engage the lower side 1243 of the plate 124 of the container body 10 that turns towards the container base 14. The U-shaped engaging member 23 of the lid 20 can hook onto the plate 124 of the container body 10 like a hook, thereby providing a downward pulling force for the lid 20. This enables the lid 20 to be firmly and tightly closed on the container body, achieving a better sealing effect.

[0067] In the schematic embodiment shown in the figure, the container body 10 includes a container base 14 and a container opening 13. The second connecting element 22 of the lid 20 is engaged with the first connecting element 12 of the container body 10 in the engaging direction from the container base 14 to the container opening 13 in such a manner that when the lid 20 is closed on the container body 10, the acting force of the second connecting element 22 on the first connecting element 12 is formed in the engaging direction. By providing the engagement from below, the acting force when closing the lid and the acting force on the closed lid will always act in the engaging direction, thereby enabling the lid 20 and the container body 10 to be safely and tightly engaged and generating a high lid adhesion force.

[0068] In some embodiments, there are at least one anti-tilting rib 221a, 221b on the outer surface 2321 of the second connecting element 22 of the lid 20. Additionally or alternatively, at least one anti-tilting rib 111 is also provided on the first outer wall 11 of the container body 10. Specifically, for example, the container may include a plurality of anti-tilting ribs. A part of the plurality of anti-tilting ribs (such as the anti-tilting rib 111) is provided on the first outer wall 11 of the container body 10, while another part of the plurality of anti-tilting ribs (such as the anti-tilting ribs 221a, 221b) is provided on the outer surface 2321 of the second connecting element 22. Another example is that all of the plurality of anti-tilting ribs are provided on the outer surface 2321 of the second connecting element 22. Another example is that all of the plurality of anti-tilting ribs are provided on the first outer wall 11 of the container body 10. In this way, a tight contact area T is established between at least one of the anti-tilting ribs 111, 221a, 221b and the facing surface to prevent the second connecting element 22 of the lid 20 from rotating and disengaging from the first connecting element 12 of the container body 10 when the user opens the lid 20, especially when the opening of the lid 20 is forced to exceed 180°.

[0069] In the exemplary embodiment shown in the figure, the container includes anti-tilting ribs 111 provided on the first outer wall 11 of the container body 10, and two anti-tilting ribs 221a, 221b provided on the outer surface 2321 of the second connecting element 22. The two anti-tilting ribs 221a, 221b of the second connecting element 22 are configured to engage with the first outer wall 11 of the container body 10 on either side of the anti-tilting rib 111 provided on the first outer wall 11 of the container body 10. Advantageously, the two anti-tilting ribs 221a, 221b provided on either side of the anti-tilting rib 111 of the container body 10 of the lid 20 can also ensure the anti-twisting function by eliminating the lateral gap around the anti-tilting rib 111 of the container body, thereby preventing the lid 20 from twisting about an axis perpendicular to the plane tangent to the first outer wall 11 of the container body at the heights of the first connecting element 12 and the second connecting element 22.

[0070] In the illustrative embodiment shown in the figure, at least one of the anti-tilting ribs 111, 221a, 221b is configured to form an interference fit between the first outer wall 11 of the container body 10 and the outer surface 2321 of the second connecting element 22 of the lid 20 in a region T, which is axially downwardly offset by a distance d relative to the engagement surface S between the coupling element 223 and the retaining element 123 in the direction of the longitudinal axis X of the container body 10. The closely contacting region axially downwardly offset relative to the engagement surface S between the coupling element 223 and the retaining element 123 can improve the efficiency of preventing the second connecting element 22 of the lid 20 from rotating and disengaging from the first connecting element 12 of the container body 10, thereby improving the mating stability therebetween.

[0071] However, when there are no anti-tilting ribs between the outer surface 2321 of the second connecting element 22 of the lid 20 and the first outer wall 11 of the container body 10, as Figure 11 and Figure 12As shown in the additional side view, an opening force F exceeding 180° may cause the second connecting element 22 to rotate and disengage from the first connecting element 12. This is because the contact point between the outer surface 2321 of the second connecting element 22 and the first outer wall 11 of the first connecting element 12 is located below the engagement surface S, resulting in a larger rotation space for the second connecting element 22. This is especially the case when the material hardness of the container body is lower than that of the lid. Compared with the above situation, when at least one anti-tilting rib 111, 221a, 221b is provided between the outer surface 2321 of the second connecting element 22 of the lid 20 and the first outer wall 11 of the container body 10, even if an opening force F exceeding 180° is applied to the lid 20, a tight contact area T (or interference fit area) can be formed between at least one anti-tilting rib 111, 221a, 221b and the facing surface. In this case, the contact area between the anti-tilting rib located below the engagement surface S and the facing surface can prevent the second connecting element 22 of the lid 20 from rotating and disengaging from the first connecting element 12 of the container body 10.

[0072] In the embodiment shown in the figure, the distance d between the engagement surface S and at least one anti-tilting rib 111, 221a, 221b is such that the coupling element 223 and the retaining element 123 cannot be disengaged by tilting the second connecting element 22 of the lid 20 in a direction perpendicular to the plane tangent to the first outer wall 11 of the container body 10 at the heights of the first connecting element 12 and the second connecting element 22. In Figure 12 the embodiment, the distance d between the engagement surface S and at least one anti-tilting rib 111, 221a, 221b is larger than Figure 11 the distance d in the embodiment. This larger distance d may be advantageous because it facilitates the mutual engagement of the first connecting element 12 and the second connecting element 22 during assembly, while the presence of at least one anti-tilting rib 111, 221a, 221b can still prevent the second connecting element 22 from rotating and disengaging from the first connecting element 12 when the user opens the lid, especially when the opening of the lid is forced to exceed 180°.

[0073] In the embodiment shown in the figure, the retaining element 123 of the container body is configured as a protrusion extending outward from the first outer wall 11 of the container body. It can be understood that in a variant, the retaining element 123 of the container body can also be configured as a recess extending inwardly in the first outer wall 11 of the container body, and then the coupling element 223 is configured to engage above the bottom of the groove forming the retaining element 123. In both cases, the coupling element 223 of the lid is configured to engage above the retaining element 123, thereby preventing the plate 124 of the first connecting element 12 from being withdrawn from the U-shaped engaging part 23 of the second connecting element 22 through the upward-opening U-shaped opening.

[0074] In the embodiment shown in the figure, the joint surface between the coupling element 223 and the holding element 123 is (substantially) perpendicular to the longitudinal axis X of the container body 10. In the above embodiment, the joint stability between the coupling element of the lid and the holding element of the container body can be ensured. Alternatively, the joint surface between the coupling element 223 and the holding element 123 forms an angle (e.g., less than 90 degrees) with the longitudinal axis X of the container body.

[0075] In some embodiments, the coupling element 223 can be a shoulder, a welding stud or other forms for snapping and clamping the second connecting element 22 of the lid 20 onto the first connecting element 12 of the container body 10, so as to maintain the accuracy and stability of the fit between the lid 20 and the container body 10. In some embodiments, the coupling element 223 can define a first inclined surface 2231 for guiding the outer side 232 of the U-shaped joint member 23 to engage with the space 121 of the first connecting element 12, which facilitates the assembly of the lid and the container body.

[0076] In the embodiment shown in the figure, the first connecting element 12 extends outward from the first outer wall 11 of the container body 10, and the second connecting element 22 extends outward from the second outer wall 21 of the lid 20. With this arrangement, the connecting elements 12, 22 can ensure the clear relative positions of the container body 10 and the lid 20. The movement guiding property of the lid 20 relative to the container body 10 can be improved, thereby enhancing the safe and tight fit between the lid and the container opening, and further improving the sealing performance of the container. Alternatively, when the container body is a double-wall structure, the first connecting element can extend between the double walls.

[0077] In the embodiment shown in the figure, the outer surface 2321 of the outer side 232 of the U-shaped joint member 23 has a curved surface corresponding to the shape of the outer surface 112 of the first outer wall 11 of the container body 10. For example, the radius of the curved surface of the outer side 232 of the U-shaped joint member 23 is similar to the radius of the outer surface 112 of the first outer wall 11 of the container body 10. Therefore, this is conducive to the U-shaped joint member 23 of the lid 20 engaging with the plate 124 of the first connecting element 12 from below, as well as the locking and fastening of the coupling element 223 of the lid 20 and the holding element 123 of the container body 10.

[0078] In certain embodiments, the outer side 232 of the U-shaped joint member 23 can form an interference fit with the space 121 of the first connecting element 12, thereby enhancing the stability of the fit. Alternatively, the size of the outer side 232 of the U-shaped joint member 23 can be slightly smaller than the size of the space 121 of the first connecting element to facilitate the detachable connection of the lid and the container body.

[0079] In the embodiment shown in the figure, there are protrusions 234 on the bottom side 233 of the U-shaped joint member 23. As Figure 4As shown, the protrusion 234 is located at an intermediate position on the bottom side 233 of the U-shaped engaging member 23. Thus, as Figure 8 shown, a recess 1241 is defined on the plate 124 of the first connecting element 12. In this case, the protrusion 234 will be inserted into the recess 1241. The protrusion 234 can strengthen the strength of the U-shaped engaging member 23, thereby improving its stability in the direction perpendicular to the side surface of the "U-shaped" structure. In addition, the protrusion 234 can also improve the lateral stability when opening the lid. Therefore, the reception of the protrusion 234 by the recess 1241 improves the positioning and mating accuracy and stability of the first connecting element 12 and the second connecting element 22. In addition, the groove 1241 also increases the flexibility of the first connecting element 12, thereby increasing the separation force of the second connecting element 22.

[0080] In the embodiment shown in the figure, the first connecting element 12 includes at least one anti-twist rib 122, 125, which is configured to laterally abut against the U-shaped engaging member 23 of the lid 20, thereby contributing to improving the installation stability. The presence of at least one anti-twist rib 122, 125 on the first connecting element 12 of the container body 10 can eliminate the lateral gap around the U-shaped engaging member 23 of the lid 20, thereby preventing the lid 20 from twisting about an axis perpendicular to the plane tangent to the first outer wall 11 of the container body 10 at the height of the first connecting element 12 and the second connecting element 22.

[0081] In some embodiments, as Figure 7 and Figure 8 shown, the first connecting element 12 can further define connecting portions 126, 128 between the first outer wall 11 and the plate 124. In this case, the connecting portions 126, 128, the plate 124 and the first outer wall 11 enclose a space 121. The connecting portions 126, 128 can extend from the first outer wall 11 to the plate 124 and protrude from the plate 124 to further define the lateral position of the U-shaped engaging member 23 that engages with the first connecting element 12. In this case, the anti-twist ribs 122, 125 can be provided on the inner surfaces of the connecting portions 126, 128 so as to abut against the U-shaped engaging member 23. Alternatively or additionally, anti-twist ribs can also be provided on the outer surface 112 of the first outer wall 11 or the inner surface of the plate 124.

[0082] In some embodiments, the hinge member 24 of the second connecting element 21 of the U-shaped engaging member 23 of the lid 20 is located between the second outer wall 21 and the U-shaped engaging member 23 of the lid 20. Advantageously, the first connecting element 12 is axially downwardly positioned relative to the free edge 16 of the container body 10, and in the open configuration of the lid 20, the second connecting element 22 including the hinge member 24 is located at or below the free edge 16 of the container body 10. In the open configuration of the lid 20, the second connecting element 22 including the hinge member 24 is located at or below the free edge 16 of the container body, such that the free edge 16 of the container body 10 can be used as a reference on the assembly line, for example, for the automatic filling of the container body 10. According to one embodiment, the engagement surface S between the coupling element 223 of the lid 20 and the retaining element 123 of the container body 10 is axially downwardly positioned relative to the free edge 16 of the container body 10. The hinge member having the above characteristics can further enhance the adhesion of the lid and improve the sealing tightness when the lid is sealed on the container body. During the closing process, the force acting on the hinge member 24 (and then on the U-shaped engaging member 23 of the second connecting element 22) in the engagement direction from the container base 14 to the container opening 13 will cause the second connecting element 22 of the lid to generate an upward adhesion force on the first connecting element 12 of the container body, so that the lid 20 fits securely and tightly with the container opening 13, achieving the purpose of improving the sealing performance.

[0083] In some embodiments, the hinge member 24 includes an elastic foil hinge member that provides a well-defined axis of rotation for pivoting the lid 20. In some embodiments, the axis of rotation of the hinge member 24 is located at or below the free edge 16 of the container body 10, such that the free edge 16 of the container body 10 can be used as a reference on the assembly line, for example, for the automatic filling of the container body 10. Compared with an integral structure, the engagement between the first connecting element 12 and the second connecting element 22 can provide an accurate installation position and facilitate the replacement of the lid. The hinge member having the above characteristics can further enhance the adhesion of the lid and improve the sealing tightness when the lid is sealed on the container body.

[0084] In some embodiments, the container body 10 can be cylindrical, and correspondingly, the lid 20 can also be cylindrical. Alternatively, the shape of the container body 10 can be rectangular. Correspondingly, the shape of the lid 20 can also be rectangular. That is to say, the shape of the lid can match the shape of the container body to stably and hermetically engage with the container body.

[0085] In some embodiments, the constituent material of the lid 20 is different from that of the container body 10. Constituent materials that are most suitable for their respective functions can be selected for the lid 20 and the container body 10, especially in terms of the stability of the fit between the lid and the container body, and in terms of the barrier properties, to protect the product stored in the container from the external environment, especially moisture and / or oxygen. For example, the container body 10 can be made of a material with high moisture-proof performance, such as high-density polyethylene (HDPE). The lid 20 can be made of a material that achieves a good balance between moisture-proof performance and elasticity, such as polypropylene (PP), high-density polyethylene (HDPE), low-density polyethylene (LDPE), for the sealing and locking functions. In particular, compared with the constituent material of the container body 10, the constituent material of the lid 20 can advantageously be selected to have a greater yield elongation (defined as the ratio of the increased length at the yield point to the initial length). In this way, an elastic force is generated when the thumb tab 26 of the lid is pressed, and then this elastic force is received by the hinge member and converted into the engagement direction, thereby promoting the stability of the fit between the lid and the container body.

[0086] In the embodiment shown in the figure, the lid 20 includes an inner skirt 25 located inwardly from the second outer wall 21 of the lid 20. The inner skirt 25 is configured to form a seal on the inner surface of the first outer wall 11 of the container body 10 when the lid 20 is closed on the container body 10. Therefore, the seal between the lid 20 and the container body 10 is ensured by the cooperation between the inner skirt 25 of the lid 20 and the inner surface of the first outer wall 11 of the container body 10.

[0087] In addition, as Figure 1 and Figure 10 shown, the inner skirt 25 includes an outward-facing sealing portion 251 for sealing on the inner circumferential groove 15 of the container body 10. According to one embodiment, the outward-facing sealing portion 251 of the inner skirt 25 includes a highest position that seals on the inner circumferential groove 15 of the container body 10 when the lid 20 is in the closed state on the container body 10, thereby forming a sealing line-type seal. According to one embodiment, when the lid is in the closed state on the container body, the highest position of the inner skirt 25 and the inner circumferential groove 15 can provide the only seal between the lid and the container body.

[0088] In the embodiment shown in the figure, the lid 20 and the container body 10 further include at least one protruding element 27, 28 that can provide a local reduction in the surrounding gap between the first outer wall 11 of the container body 10 and the second outer wall 21 of the lid 20 when the lid is in the closed state on the container body 10, wherein each protruding element 27, 28 is provided on one of the outer surface 112 of the first outer wall 11 of the container body 10 and the inner surface 211 of the second outer wall 21 of the lid 20.

[0089] According to one embodiment, each of the protruding elements 27, 28 is provided on one of the outer surface 112 of the first outer wall 11 of the container body 10 and the inner surface 211 of the second outer wall 21 of the lid 20, and when the lid is in the closed state, it does not face, interact with, or contact any other protruding elements that may be on the other surface of the outside of the outer peripheral body wall and the inside of the outer peripheral lid wall.

[0090] Advantageously, when the lid 20 is in the closed state, at least one of the protruding elements 27, 28 limits the horizontal displacement of the lid, in particular the inner skirt 25, relative to the container body 10. That is, even in the case of a lateral force being applied to the closed lid, at least one of the protruding elements 27, 28 allows the lid 20 to be precisely positioned on the container body 10 during its opening or closing, and allows for optimization of the contact between the inner skirt 25 and the container body 10, thereby improving the sealing efficiency. The provision of at least one of the protruding elements 27, 28 can avoid or greatly reduce the translation of the lid 20 relative to the container body 10 (especially during the opening of the lid when a force is applied, such as to the thumb tab 26 and the lid 20 tends to move in the direction of the hinge member), at which time the U-shaped engagement member 23 may open due to the movement of its inner and outer sides away from each other. In this way, in addition to the function of at least one anti-tilting rib 111, 221a, 221b to avoid the risk of the second connecting portion 22 of the lid 20 becoming disengaged from the first connecting portion 12 of the container body 10 due to the rotation of the U-shaped engagement member 23, the risk of the second connecting portion 22 becoming disengaged from the first connecting portion 12 due to the opening of the U-shaped engagement member 23 can also be avoided.

[0091] The movement of the lid 20 towards the hinge member 24 can also reduce the dimensional interference between the sealing portion 251 of the inner skirt 25 and the inner peripheral groove 15 of the container body 10, and reduce the force required to open the lid 20. This may lead to, for example, inadvertent opening during the transportation of the container, and may result in damage to the product stored in the container. Due to at least one of the protruding elements 27, 28, the opening force can be more reliably controlled by the elastic characteristics of the inner skirt 25 of the lid 20 and the depth of the inner peripheral groove 15 of the container body 10, and is less affected by all these surface dimensional tolerance variations that are inevitable in mass production. Another advantage of at least one of the protruding elements 27, 28 is that the opening force can be adjusted more precisely, so as to keep the force required for the user to open the lid 20 comfortable while preventing the accidental opening of the container 10.

[0092] In some embodiments, the moisture permeability of container 1000 is less than 2 mg / day under the conditions of 40 °C and 75% relative humidity. Specifically, when lid 20 is placed on container body 10, as determined by the standard method ASTM D7709, the moisture permeability W of container 1000 at 40 °C and 75% relative humidity (RH) is less than 2 mg / day, preferably less than 1 mg / day, and more preferably less than 0.5 mg / day.

[0093] In some embodiments, the moisture permeability of container 1000 may depend on the size and structural material of the container. Consider the following factors::

[0094] - "W", which is the moisture permeability of the container at 40 °C

[0095] and 75% relative humidity (RH) with the lid closed on the container body, as determined by the standard method ASTM D7709,

[0096] - "S", which is the total outer surface area of the container in m 2 ,

[0097] - "e", which is the average thickness of the container in mm,

[0098] Under the conditions of 40 °C and 75% relative humidity (RH) with the lid closed on the container body, the moisture permeability of the container (defined as P = W·e / S) is less than 220 mg·mm / m 2 .d, preferably less than 160 mg·mm / m 2 .d, preferably less than 120 mg·mm / m 2 .d.

[0099] The above are only embodiments or examples of the present disclosure, and do not limit the patent scope of the present disclosure. Any equivalent structural transformation made under the concept of the present disclosure using the content of the specification and drawings of the present disclosure, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present disclosure. Various elements in the embodiments or examples can be omitted or replaced by their equivalent elements. In addition, the steps can be executed in an order different from that described in the present disclosure. Further, various elements in the embodiments or examples can be combined in various ways. Importantly, with the evolution of technology, many elements described herein can be replaced by equivalent elements that appear after the present disclosure.

Claims

1. A container, comprising: A container body (10), the container body including a first outer wall (11) and a first connecting element (12); A lid (20), the lid being configured to cover the container body (10), the lid (20) including a second outer wall (21) and a second connecting element (22) having a hinge member (24), wherein the second connecting element (22) of the lid (20) engages with the first connecting element (12) of the container body (10) such that the lid (20) can rotate relative to the container body (10) about the hinge member (24), wherein the first connecting element (12) includes a plate (124), the plate being spaced apart from the first outer wall (11) by a space (121), and a retaining element (123) is disposed in the space (121) between the plate (124) and the first outer wall (11), wherein the second connecting element (22) includes a U-shaped engaging part (23), the U-shaped engaging part forms a groove (231), and has an outer side (232) provided with a coupling element (223), wherein the plate (124) is configured to be received in the groove (231) of the U-shaped engaging part (23) while being surrounded by the U-shaped engaging part (23) from below, and wherein the coupling element (223) engages above the retaining element (123), wherein at least one anti-tilting rib (111, 221a, 221b) is provided on at least one of the first outer wall (11) of the container body (10) and the outer surface (2321) of the second connecting element (22) facing the first outer wall (11), and the at least one anti-tilting rib (111, 221a, 221b) is axially downwardly offset (d) relative to the engagement surface (S) between the coupling element (223) and the retaining element (123) in the direction of the longitudinal axis (X) of the container body (10).

2. The container according to claim 1, wherein, The at least one anti-tilting rib (111, 221a, 221b) is configured to form an interference fit in a region (T) between the first outer wall (11) of the container body (10) and the second connecting element (22) of the lid (20), and the region is axially downwardly offset (d) relative to the engagement surface (S) between the coupling element (223) and the retaining element (123) in the direction of the longitudinal axis (X) of the container body (10).

3. The container according to claim 1, wherein, At least one anti-tilting rib (111) is provided on the first outer wall (11) of the container body (10).

4. The container according to claim 1, wherein, At least one anti-tilting rib (221a, 221b) is provided on the outer surface (2321) of the second connecting element (22).

5. The container according to claim 1, comprising an anti-tilting rib (111) provided on a first outer wall (11) of the container body (10) and two anti-tilting ribs (221a, 221b) provided on an outer surface (2321) of the second connecting element (22).

6. The container according to claim 5, wherein, Two anti-tilting ribs (221a, 221b) provided on the outer surface (2321) of the second connecting element (22) are configured to engage with the first outer wall (11) of the container body (10) on either side of the anti-tilting rib (111) provided on the first outer wall (11) of the container body (10).

7. The container according to claim 1, wherein, The distance (d) between the joint surface (S) and the at least one anti-tilting rib (111, 221a, 221b) is such that the coupling element (223) and the retaining element (123) cannot be disengaged by tilting the second connecting element (22) of the lid (20) in a direction perpendicular to the plane tangent to the first outer wall (11) of the container body (10) at the level of the first connecting element (12) and the second connecting element (22).

8. The container according to claim 1, wherein, In the case where the plate (124) is received in the groove (231), the plate (124) is surrounded by the U-shaped joint member (23) on its inner side (1242) and outer side (1244) and on its lower side (1243) facing the container base (14) of the container body (10).

9. The container according to claim 1, wherein, The container body (10) includes a container base (14) and a container opening (13), and the second connecting element (22) of the lid (20) is joined to the first connecting element (12) of the container body (10) in a joining direction from the container base (14) to the container opening (13) in such a manner that the force exerted by the second connecting element (22) on the first connecting element (12) forms in the joining direction when the lid (20) is closed on the container body (10).

10. The container according to claim 1, wherein, The retaining element (123) of the container body (10) is configured as a protrusion extending outward from the first outer wall (11) of the container body (10) or as a recess extending inward in the first outer wall (11) of the container body (10).

11. The container according to claim 1, wherein, The joint surface between the coupling element (223) and the retaining element (123) is perpendicular to the longitudinal axis (X) of the container body (10).

12. The container according to claim 1, wherein, The first connecting element (12) is axially downwardly positioned relative to the free edge (16) of the container body (10), wherein, in the open configuration of the lid (20), the second connecting element (22) including the hinge member (24) is located at or below the free edge (16) of the container body.

13. The container according to claim 1, wherein, The axis of rotation of the hinge member (24) is located at or below the free edge (16) of the container body (10).

14. The container according to claim 1, wherein, The outer surface (2321) of the outer side (232) of the U-shaped joint member (23) has a curved shape corresponding to the shape of the outer surface (112) of the first outer wall (11) of the container body (10).

15. The container according to claim 1, wherein, The first connecting element (12) includes at least one anti-twist rib (122, 125) configured to laterally abut against the U-shaped joint member (23) of the lid (20).

16. The container according to claim 1, wherein, The material constituting the lid (20) is different from the material constituting the container body (10).

17. The container according to claim 16, wherein, The material constituting the lid (20) has a greater yield elongation than the material constituting the container body (10).

18. The container according to claim 1, wherein, The lid (20) includes an inner skirt (25) positioned inwardly from a second outer wall (21) of the lid (20), wherein the inner skirt (25) is configured to form a seal on an inner surface of a first outer wall (11) of the container body (10) when the lid (20) is placed on the container body (10).

19. The container according to claim 18, wherein, The inner skirt (25) includes an outward-facing sealing portion (251) for sealing on an inner circumferential groove (15) of the container body (10).

20. The container according to claim 1, wherein, When the lid is in a closed state on the container body (10), at least one protruding element (27, 28) provides a local reduction of the surrounding gap between the first outer wall (11) of the container body (10) and the second outer wall (21) of the lid (20), wherein each protruding element (27, 28) is provided on one of an outer surface (112) of the first outer wall (11) of the container body (10) and an inner surface (211) of the second outer wall (21) of the lid (20).

21. The container according to claim 1, wherein, The first connecting element (12) extends outwardly from the first outer wall (11) of the container body (10), and the second connecting element (22) extends outwardly from the second outer wall (21) of the lid (20).

22. The container according to claim 1, wherein, The container has a moisture permeability of less than 220 mg·mm / m 2 .d at 40 °C and 75% relative humidity.

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