GB2585620A

GB2585620A - Closure

Info

Publication number: GB2585620A
Application number: GB1814283.6A
Authority: GB
Inventors: Hein John; Tipper Robert
Original assignee: Dubois Ltd
Current assignee: Dubois Ltd
Priority date: 2018-09-03
Filing date: 2018-09-03
Publication date: 2021-01-20
Also published as: GB201814283D0; WO2020049278A1

Abstract

A closure 102 for a container 104 having a dispensing opening 106. The closure comprises: a base (108, figure 2) mountable on the container and connected by hinges 128 to a lid 110; a latching mechanism 112; a resilient element and an abutment formation (114 and 116, figure 3). On closing the lid, the resilient element deforms against the abutment formation and stores energy, which is transferred to the lid when it is de-latched from the closed position. The closure further comprises an aperture (118, figure 3) extending through the lid and/or base of the closure. When the lid is closed, the resilient element, which may be a tongue, is deformed and occupies aperture. There may be an annulus 142 around the opening, which may have a protrusion (344, figure 7) extending around it, and an end of the tongue 314 may be attached to the protrusion. There may be guide projections 134 and two integrally formed hinges, with the tongue in between. A container comprising the closure is also claimed.

Description

Closure

FIELD OF THE INVENTION

The present invention relates to a closure for a container and to containers comprising such a closure.

BACKGROUND OF THE INVENTION

Closures that enable re-sealing of a container are known in the art. For example those that enable re-sealing of an opening, such as those in the packaging of cleaning wipes or baby wipes. These closures are produced in a variety of shapes, sizes, and materials.

The simplest version of such a closure takes the form of a strip of plastics material coated with adhesive that is re-sealably mounted over a dispensing opening in the packaging.

However, such closures can only be re-sealed a limited number of times, before the adhesive surface is lost and the closure is unusable.

More complex closures are also known in the art, having a variety of different configurations. Said closures commonly take the form of a hinged cover, having a latching mechanism to retain said cover over the dispensing opening when not in use, offering a means of resealing the dispensing opening on a more frequent basis. However, such closures are commonly not easy to open, or do not open to an extent that offers maximum convenience for the user. Otherwise, alternative closures are complex and therefore expensive to manufacture.

The present invention seeks to overcome or at least mitigate / alleviate one or more problems associated with the prior art.

SUMMARY OF THE INVENTION

In a first aspect, a closure for mounting on a container having a dispensing opening is provided, said closure comprising: a base portion configured for mounting the closure on said container; a lid portion hingedly connected to the base portion and configured to move between an open position, in which access to the dispensing opening is permitted, and a closed position, in which access to the dispensing opening is inhibited; a latching mechanism for releasably securing the lid portion in the closed position; and a resilient element and an abutment formation, wherein the resilient element is arranged to deform against the abutment formation and store energy upon movement of the lid portion into the closed position, and to transfer stored energy to the lid portion upon the lid portion being de-latched from the closed position; the closure further comprising: an aperture defined by the closure and extending through the lid portion and/or base portion of the closure; wherein the resilient element is arranged to deform against the abutment formation such that the resilient element is deformed to occupy the aperture when the lid portion is in the closed position.

When deformed, the resilient element stores potential energy. Upon the lid portion being released by the latching mechanism, said stored energy is transferred from the resilient element into movement of the lid portion from the closed position to the open position. In this way, a lid which springs open to a certain degree when de-latched from the closed position is provided.

Advantageously, the lid portion is opened more easily by a user. Further, reduced contact between the user and the lid portion is possible which may advantageously reduce the risk of contamination should, for example, the container house a product for cleaning purposes.

The closure comprises an aperture which extends through the lid portion and/or the base portion of the closure. In some embodiments, the closure comprises an aperture which extends through the lid portion of the closure. In some embodiments, the closure comprises an aperture which extends through the base portion of the closure. The resilient element and abutment formation are configured such that, as the lid portion is moved from the open position to the closed position, the resilient element is deformed against the abutment formation such that the resilient element is moved or deflected to occupy the aperture. In other words, as the lid is closed, the resilient portion deflects into the aperture as it is deformed against the abutment formation. In this way, when the lid is in the closed position, the resilient element occupies the aperture.

In exemplary embodiments, the resilient element is arranged to deform against the abutment formation to partially or substantially totally occupy the aperture.

The provision of an aperture in the lid and/or base portion increases the space available into which the resilient element can be deformed or deflected away from its at rest or un-stressed configuration. For example, the angle or distance through which the resilient element can be deflected or deformed is increased by virtue of the aperture into which the resilient element can move. By increasing the extent to which the resilient element is deformed, the potential energy stored by the resilient element is increased, facilitating a more effective spring-open functionality.

Advantageously, by providing an aperture into which the resilient element can deform, the size of the closure itself can be reduced, whilst maintaining the space available through which the resilient element can deform or deflect. For example, the height of the closure when in the closed position (i.e. the distance from an outer surface of the lid portion to an outer surface of the base portion when the closure is closed) can be minimised, whilst maintaining the space available through which the resilient element can deform or deflect. In this way a more slim-line closure can be provided whilst maintaining the spring-open functionality.

In exemplary embodiments, the resilient element is configured to be elastically deformed when the lid portion is in the closed position. The energy required to deform the resilient element is transferred from the movement of the lid portion into the closed position. Said energy is then stored by the resilient element until it is desired to move the lid portion into the open position. Advantageously, this means that no other external source of energy is required to deform the resilient element other than that provided by moving the lid portion into the closed position.

In exemplary embodiments, the resilient element is in an un-stressed condition when the lid portion is in the open position. The resilient element being in an unstressed condition when the lid is in the open position means that advantageously, the resilient element has a higher capacity to store energy under deformation as the lid portion is moved into the closed position. Subsequently, more energy can then be transferred back to movement of the lid portion once the lid portion is de-latched.

Optionally, the aperture defined by the closure extends through the lid portion from an inner surface of the lid portion to an outer surface of the lid portion and/or the aperture defined by the closure extends through the base portion from an inner surface of the base portion to an outer surface of the base portion.

In other words, the aperture comprises an opening or gap in the lid portion and/or base portion.

In exemplary embodiments, the lid portion comprises a body having an inner surface and an outer surface. In exemplary embodiments, the base portion comprises a body having an inner surface and an outer surface.

It will be understood that, when the closure is in the closed position, the inner surface of the lid portion faces towards the inner surface of the base portion. Conversely, when the closure is in the closed position, the outer surface of the lid portion faces away from the outer surface of the base portion.

In other words, the inner surfaces are contained within the volume defined by the closure when in the closed position. In contrast, the outer surfaces form an external surface of the closure when in the closed position.

Optionally, the resilient element and the abutment formation are configured such that the resilient element does not extend beyond an outer surface of the closure, when the closure is in the closed position.

In other words, as the lid is closed and the resilient element is deformed against the abutment member, movement of the resilient member is such that the position of the resilient member does not extend beyond the external surface of the closure when the closure is in the closed position. In this way, a clean exterior appearance is provided. Further, since the resilient element does not extend beyond an outer surface of the closure, there is a reduced risk of the resilient element becoming caught or snagging on other items, for example when carried in a handbag. Accordingly, there is a reduced risk of damage to the resilient element and/or of the closure opening when not desired.

Optionally, the shape and/or size of the resilient element corresponds to that of the aperture defined by the closure.

In this way, material which has been removed from the closure to provide the aperture can be used to provide the resilient element. Accordingly, the resilient element is effectively provided by a redistribution of the material which would have otherwise filled the aperture. This saves both cost and material.

Advantageously, in some embodiments, the resilient element can be arranged to lie substantially flush with the outer surface of the closure when in the closed position, thereby forming a clean and neat external appearance. By providing a resilient element having a shape and/or size which corresponds to the aperture, an improved external appearance can be provided.

Optionally, the resilient element comprises a first end, which is coupled to the closure, and a second free end distal the first end.

In other words, the resilient element comprises a cantilever arrangement which is coupled to the closure at one end. In exemplary embodiments, the resilient element is arranged to flex and deflect into the aperture as it is deformed against the abutment formation.

Optionally, the abutment formation is arranged to contact the resilient element at a contact point proximal the second end of the resilient element.

In this way, potential energy is stored along the full length of the resilient element. By positioning the contact point proximal the second end (i.e. the free end), the stress applied to the root of the resilient element is reduced, since the load is shared over the whole length of the resilient element.

Optionally the contact point is provided proximal the hinged connection between the base portion and the lid portion.

Locating the contact point between the resilient element and the abutment formation in close proximity to the hinged connection acts to maximise the transfer of energy from the resilient element to the lid portion when the lid is de-latched. Advantageously, this further facilitates movement of the lid from the closed position to the open position.

This arrangement minimises the displacement of the resilient element so that stress is not induced on this part, whilst maximising the effect of the displacement in opening the closure. It is therefore advantageous that the contact point on the resilient element is located close to the hinge point of the lid.

Optionally, the abutment formation comprises one or more formations which are arranged to contact the resilient element at one or more contact points, optionally such that the or each contact point forms a line of contact between the abutment formation and the resilient element, the line of contact being substantially parallel to the axis of the hinged connection.

In some embodiments, the abutment formation comprises a plurality of formations, each of which arranged to contact the resilient element at a respective contact point, to form a series of contact points. The series of contact points are arranged to form a line of contact between the resilient element and the abutment formation, which is substantially parallel to the axis of the hinged connection between the lid portion and the base portion. This arrangement facilitates the transfer of energy stored in the elastically deformed resilient element, to the lid portion.

In some embodiments, the plurality of formations comprises a plurality of projections. For example, 2, 3, 4, 5, 6 or more projections.

In some embodiments, the plurality of formations comprises a series of ribs. This minimises surface contact and friction between the resilient portion and the abutment formation, whilst applying an even load across the width of the resilient element.

In some embodiments, the abutment formation comprises a single formation, e.g. a projection, wherein the single formation comprises an elongate formation configured to contact the resilient element along a line of contact. In this way an even load is applied across the width of the resilient element.

Optionally, the lid portion comprises the resilient element, wherein the aperture defined by the closure is formed in the lid portion and wherein, when the resilient element is in an un-stressed condition, the resilient element extends away from the aperture.

In other words, the second end of the resilient element extends away from the aperture and hence away from the lid portion and towards the base portion.

Advantageously, said free end of the resilient element projecting away from the lid portion ensures that movement of the lid portion away from the closed position, towards the open position, is facilitated as far as possible. Further, as the lid portion is moved from the open position to the closed position, the extent of deformation of said resilient elements is sufficient to ensure a minimum level of stored energy therein.

Optionally, the lid portion comprises a body and the resilient element comprises a tongue defined by the body.

In this way the resilient element is formed from the lid portion itself, accordingly a separate component is not required. In other words the resilient element is integrally formed with the lid portion. Advantageously, this configuration simplifies the manufacturing process.

Optionally, the body of the lid portion comprises a cover portion, arranged to extend over the dispensing opening when the closure is in the closed position, and a side wall extending from said cover portion, the side wall terminating at an edge distal the cover, wherein the tongue is defined by a portion of the body extending along the side wall, and wherein the free end of the tongue is provided proximal the edge of the side wall.

By providing the tongue in the side wall of the lid, in some embodiments, the tongue can be provided such that it does not extend into the cover portion. In this way, the cover portion remains free for the application of labels and/or branding.

Optionally, wherein the first fixed end of the tongue is provided proximal the cover.

In exemplary embodiments, the tongue is configured to extend from the cover portion.

In exemplary embodiments, the outer profile of the lid portion is utilised to provide the resilient tongue. This maintains the clean aesthetic appearance of 15 the lid and does not expose the workings of the spring-open mechanism when the closure is closed, whilst achieving the desired spring-open functionality.

In exemplary embodiments, the side wall is coupled to the cover portion by a transition portion and the tongue is configured to extend from the transition 20 portion.

Optionally the base portion comprises the abutment formation and the abutment formation comprises at least one projection extending from an inner surface of the base portion.

Advantageously, providing the resilient element on the lid/base portion, and the means to deform said resilient element in a corresponding location on the base/lid portion ensures that the maximum deformation of said resilient element occurs as the lid portion is moved into the closed position. This subsequently ensures that the maximum possible amount of energy is stored in the deformed resilient element when the lid portion is in the closed position.

In some embodiments, the abutment portion extends from an inner surface of the lid/base portion and the resilient element is arranged such that it does not extend beyond an external surface of the base/lid portion when the closure is in the closed position. Accordingly, a closure having an aesthetically pleasing outer appearance is provided.

Optionally the abutment formation comprises an angled or ramped surface arranged such that the second free end of the resilient element is configured to ride along the angled surface as the lid portion moves from the closed position to the open position and vice versa.

In this way, a continuous gradient of deformation is provided as the lid is moved to the closed position and the resilient element deforms against the abutment formation. The ramped configuration enables the resilient element to deflect in a plane which is perpendicular to the angle of rotation. This simplifies the tooling required and also permits aesthetic design freedom in the region of the closure proximal the hinge.

Optionally, the base portion and/or lid portion comprises a body having the or an inner surface from which a support formation extends, and wherein the first end of the resilient element is coupled to said support formation such that the first end of the resilient element is offset from said inner surface.

Advantageously, offsetting the first end of the resilient element from the inner surface of the base/lid portion in this way maximises the space through which the resilient element can deform, e.g. maximises the angle through which the resilient element can deflect. Accordingly, this arrangement facilitates the storing of potential energy in the resilient element.

In some embodiments, the support formation is configured to deform as the resilient element is deformed, thereby increasing the potential energy stored as the lid is moved to the closed position. For example, as the resilient element is deflected, the support formation may twist and thereby also store potential energy.

Optionally the base portion comprises the resilient element, the aperture defined by the closure is formed in the base portion and wherein, when the resilient element is in an un-stressed condition, the resilient element extends away from the aperture.

In other words, the second end of the resilient element extends away from the aperture and hence away from the base portion and towards the lid portion.

Advantageously, said free end of the resilient element projecting away from the base portion ensures that movement of the lid portion away from the closed position, towards the open position, is facilitated as far as possible. Further, as the lid portion is moved from the open position to the closed position, the extent of deformation of said resilient elements is sufficient to ensure a minimum level of stored energy therein.

Optionally the base portion defines an annulus for said dispensing opening of the container, and wherein the support formation comprises a protrusion extending around the perimeter of the annulus, wherein the first end of the resilient element is coupled to the protrusion.

Optionally the lid portion comprises the abutment formation and the abutment formation comprises at least one projection extending from an inner surface of the lid portion.

Optionally the abutment formation comprises an elongate projection extending in a direction substantially parallel to the axis of the hinged connection between the lid portion and the base portion.

This arrangement facilitates the transfer of energy stored in the elastically deformed resilient element, to the lid portion. In some embodiments, energy is stored in the resilient element such that, when the lid is de-latched, the resilient element applies a force to the lid which is in a direction substantially perpendicular to the lid (i.e. a plane of the lid e.g. the cover portion). This creates an efficient transfer of energy to the lid upon release of the latch.

Optionally the lid portion and base portion are coupled together via a hinge and wherein the hinge is integrally formed with the closure.

Advantageously, this configuration simplifies the manufacturing process, allowing the at least one hinge to be formed in the same manufacturing step as the lid portion and the base portion.

In exemplary embodiments, the lid portion and the base portion are integrally formed by an injection moulding process. Advantageously, an injection moulding process provides a rapid throughput, reproducible method of manufacture whereby the lid portion, base portion and at least one hinge can be efficiently and economically produced.

In some embodiments, the closure is formed of a plastics material.

Optionally the lid and base portions are coupled via at least two hinges and the resilient element is provided between adjacent pairs of hinges.

This alternating arrangement of the hinges and the resilient element has the advantage that the resilient element does not become over-stressed with stored potential energy as the lid portion is moved to the closed position. Over stressing of the resilient element can degrade the resilience of this portion, hence reducing its effectiveness to facilitate movement of the lid from the closed position to the open position. Accordingly, by positioning the resilient element alternately with the hinges a more robust closure having improved longevity is provided.

In some embodiments the resilient element is positioned equidistant from each hinge.

Optionally the lid portion comprises the or a cover portion, arranged to extend over the dispensing opening when the closure is in the closed position, and the or a side wall extending from said cover portion, the side wall terminating at the or an edge distal the cover, wherein the lid and base portions are hingedly connected via a hinge which is coupled to the edge of the side wall of the lid portion.

In this way the hinge is provided remote from the cover of the lid portion, for example, the hinge may be provided proximal or substantially flush with an upper surface of the container. Advantageously, this arrangement results in simpler tooling required to manufacture the closure.

Optionally the base portion defines the or an annulus for said dispensing opening of the container, wherein the aperture defined by the closure is spaced apart from said annulus.

This ensures that the closure can be advantageously arranged to fully encompass, and as such protect, the opening.

In exemplary embodiments, the base portion defines the annulus. For example, an inner circumference of the base portion defines the annulus.

In exemplary embodiments, the aperture is defined in the base portion of the closure and is spaced apart from the annulus. Accordingly, the features of the abutment formation, resilient element and aperture do not interfere with the dispensing opening of the container.

Optionally the closure comprises a single resilient element.

Advantageously, sufficient potential energy may be stored by a single resilient element.

Optionally the resilient element and/or the abutment formation are integrally formed in the closure.

Advantageously, forming the resilient element and/or the abutment formation integrally with the closure simplifies the manufacturing process, allowing the resilient element and/or the abutment formation to be formed in the same manufacturing steps as the lid/base portion.

Optionally the closure comprises one or more guide projection(s) provided on the lid and/or base portion, wherein the guide projection(s) are configured to engage the base and/or lid portion to provide a point of contact between the lid portion and the base portion.

The guide projection(s) serve to guide the lid portion into the closed position such that the lid portion and base portion are correctly aligned and properly latched when in the closed position. Advantageously, this facilitates proper closure of the lid such that the likelihood of the closure opening accidentally is reduced.

The incorporation of said latching arrangement into the closure means that the lid portion can be releasably secured with respect to the base portion when the lid portion is in the closed position. Advantageously, this prevents the lid portion from moving into the open position at an undesirable point in time.

Optionally the latching arrangement comprises a releasable inter-digitation between the lid portion and the base portion.

Such a latching arrangement is advantageously non-complex, meaning its manufacture could be done at reduced cost, and its operation is more straightforward for a user.

Optionally said releasable inter-digitation comprises a snap-fitting arrangement between the lid portion and the base portion.

Alternatively or additionally, the latching arrangement may comprise an interference-fitting arrangement. An interference fit is understood to mean a press fit or friction fit, wherein fastening is achieved by friction when the 20 components are pressed together.

Optionally the latching arrangement comprises the lid portion having a first protrusion, and the base portion having a second protrusion, wherein the first protrusion is releasably secured against the second protrusion when the lid portion is in the closed position.

Optionally the latching arrangement comprises the lid portion having a protrusion, and the base portion having a receiving aperture, wherein the protrusion is releasably secured within the receiving aperture when the lid is in the closed position.

Optionally the latching arrangement further comprises a release button, configured for activation to de-latch the lid portion from the closed position. 1.3

In accordance with a further aspect of the disclosure, a closure for mounting on a container having a dispensing opening is provided, said closure comprising: a base portion configured for mounting the closure on said container, wherein the base portion comprises an abutment formation in the form of at least one projection extending from an inner surface of the base portion; a lid portion connected to the base portion by a hinge, wherein the hinge is integrally formed with the closure, and wherein the lid portion is configured to move between an open position, in which access to the dispensing opening is permitted, and a closed position, in which access to the dispensing opening is inhibited, wherein the lid portion comprises a cover portion, arranged to extend over the dispensing opening when the closure is in the closed position, and a side wall extending from said cover portion, the side wall terminating at an edge distal the cover, and wherein the lid portion comprises a resilient tongue defined by a portion of the lid portion and terminating proximal the edge of the side wall; a latching mechanism for releasably securing the lid portion in the closed position; wherein the resilient tongue is arranged to deform against the abutment formation and store energy upon movement of the lid portion into the closed position, and to transfer stored energy to the lid portion upon the lid portion being de-latched from the closed position; the lid portion further comprising an aperture defined by the lid portion and extending through the lid portion from an inner surface of the lid portion to an outer surface of the lid portion; and wherein the resilient tongue is arranged to deform against the abutment formation such that the resilient tongue is deformed to occupy the aperture when the lid portion is in the closed position.

In a further aspect, a container is provided comprising a closure as disclosed herein.

In some embodiments, the container comprises a flexible packaging, for example such as those used in the packaging of cleaning or baby wipes. In some embodiments, the container comprises a substantially rigid container, for example a tub-like container.

The closures disclosed herein may be applied to any suitable type, size and/or shape of container. For example, the container may be substantially cuboid in shape. For example, the container may comprise flexible packaging having a substantially rectangular cross section. In some embodiments the closure is configured such that the hinge extends substantially parallel to the long edge of the container, in other examples the hinge extends substantially parallel to the short edge.

Whilst the embodiments disclosed herein are described in terms of a container for wipes, it will of course be appreciated that containers disclosed herein may be used to house any desired objects or material.

In some embodiments, the container and closure are integrally formed as a single component. In alternative embodiments the container and closure comprise separate components.

In some embodiments, the lid portion and the base portion of the closure are integrally formed as a single component. In alternative embodiments, the lid portion and the base portion of the closure comprise separate components.

It will be appreciated that the optional features described above and herein may be applicable to any aspect of the disclosure. All combinations contemplated will not be explicitly recited here for the sake of brevity.

BRIEF DESCRIPTION OF THE DRAWINGS

Embodiments of the invention will now be described with reference to the accompanying drawings, in which: Figure 1 is a perspective view of a closure according to a first embodiment attached to a container; Figure 2 is a perspective view of the closure of Figure 1; Figure 3 is a close up perspective view of the resilient element and abutment formation of the closure of Figure 1; Figures 4(a)-(e) show a cross sectional view of the closure of Figure 1 as it moves from the closed position to the open position; Figures 5(a)-(d) show a cross sectional view of the latching mechanism of the closure of Figure 1; Figure 6 shows a perspective view of a second embodiment of a closure attached to a container, the closure comprising the resilient element and abutment formation as shown in Figure 3; Figure 7 shows a perspective view of a third embodiment of a closure for attachment to a container; Figure 8 shows a perspective view of the closure of Figure 7 when in the closed position; Figure 9 shows a close up perspective view of the resilient element and abutment formation of the closure of Figure 7; Figures 10(a)-10(c) show a cross sectional view of the closure of Figure 7 as it moves from the closed position to the open position; Figure 11 shows a fourth embodiment of a closure which is attached to a container, the closure comprising the resilient element and abutment formation of Figure 9; Figures 12(a)-(c) show a cross sectional view of a closure according to a fifth 20 embodiment when moving from a closed position to an open position; and Figure 13 shows a cross sectional view of an alternative latching mechanism for use with the closures disclosed herein.

DETAILED DESCRIPTION OF EMBODIMENT(S)

Referring firstly to Figure 1, a closure 102 is shown mounted on a container 104 having an opening 106. The closure 102 includes a base portion 108 and a lid portion 110. The base portion 108 is configured for mounting the closure 102 on the container 104 such that the base portion 108 is arranged to surround the dispensing opening 106. The lid portion 110 is hingedly connected to the base portion 108, allowing it to be moved between a closed position in which the opening 106 is covered by the lid portion 110, and an open position in which the opening 106 is exposed.

In the illustrated embodiment of Figure 1, the opening 106 allows sheet material, such as baby wipes, face wipes or cleaning wipes to be dispensed from the container 104. The base portion 108 may be fixedly attached to the container 104 and form an annulus 142 for the opening 106.

The closure 102 also includes a latching mechanism 112 for releasably securing the lid portion 110 in the closed position. With reference to Figures 1 and 2, Figure 1 illustrates the closure 102 when in an open position and Figure 2 illustrates the closure 102 when in the closed position, in which the lid portion 110 is secured in the closed position by the latching mechanism 112.

CO

1-15 As is most clearly illustrated in Figure 3, the closure 102 also includes a resilient element 114 and an abutment formation 116. The resilient element 114 is configured to deform against the abutment formation 116 and store energy upon O) movement of the lid portion 110 into the closed position. The resilient element 114 is also arranged to transfer stored energy to the lid portion 110 upon the lid portion 110 being de-latched from the closed position. This action is illustrated in Figures 4(a)-4(e), which will be described in further detail below.

Also with reference to Figure 3, an aperture 118 is defined by the closure 102 and extends through the lid portion 110 of the closure 102. The resilient element 114 is arranged to deform against the abutment formation 116 such that the resilient element 114 is deformed to occupy the aperture 118 when the lid portion 110 is in the closed position. This is illustrated in Figure 4a, for example.

The aperture 118 extends through the lid portion 110 from an inner surface of the lid portion 120 (shown in Figures 1 and 3) to an outer surface 122 of the lid portion 110 (see Figure 2). In other words, the aperture 118 is an opening or a gap in the lid portion 110, i.e. the aperture 118 extends through the thickness of the lid portion 110.

The resilient element 114 and the abutment formation 116 are arranged such that, when the closure is in the closed position (see Figure 2) the resilient element 114 does not extend beyond an outer surface of the closure 102. In other words, the resilient element 114 does not extend beyond the outer surface 122 of the lid portion 110, when the closure 102 is in the closed position.

The shape and/or size of the resilient element 114 is arranged to correspond to the shape and/or size of the aperture 118.

The resilient element 114 is provided as a cantilever arrangement haying a first end 114a coupled to the lid portion 110, and a second free end 114b distal the first end 114a. In other words, the resilient element 114 is formed as a tongue with first end 114a being at the root of the tongue and a second free end 114b.

When the resilient element 114 is in an unstressed condition, i.e. when the closure is in an open position, the resilient element 114 extends away from the aperture 118. In other words, the free end 114a of the resilient element 114 15 extends away from the aperture 118 and away from the lid portion 110.

In the embodiment illustrated in Figures 1-5, the lid portion 110 includes a body having the inner surface 120 of the lid and the outer surface 122 of the lid. The resilient element 114 comprises a tongue which is defined by the body of the lid portion 110. In other words the resilient tongue 114 can be thought of as being formed of a part of the lid portion body, which extends towards the base portion 108 of the closure 102.

The body of the lid portion 110 includes a cover portion 110a which is arranged to extend over the dispensing opening 106 when the closure 102 is in the closed position. A side wall 110b extends from the cover portion 110a and terminates at an edge 110c distal the cover 110a. As can be seen in Figure 1, for example, the tongue 114 is defined by a portion of the body extending along the side wall 110b and the free end of the tongue 114b is provided proximal the edge 110c of the side wall 110b. The first fixed end 114a of the tongue 114 is provided proximal the cover 110a of the lid portion 110. In other words, the tongue 114 extends from its root 114a positioned proximal the cover 110a of the lid portion and terminates at a free end 114b located proximal the edge 110c of the lid portion side wall 110b.

As is shown in Figures 4a-e, the abutment formation 116 is positioned to contact the resilient element 114 at a contact point 126 proximal the second end 114b of the resilient element 114. The contact point 126 is provided proximal the hinged connection 128 between the base portion 108 and the lid portion 110.

With reference to Figure 3, the abutment formation 116 includes a series of three ribs 124, each of which being arranged to contact the free end 114b of the resilient element 114 at a contact point 126. This forms a series of three contact points 126 which are arranged in a line which is substantially parallel to the axis of the hinged connection 128. As will be apparent from Figure 3, the series of contact points 126 are provided proximal the hinged connection 128 between the base portion 108 and the lid portion 110.

With reference to Figure 3, the series of three projections 124 each include an angled or ramped surface 130 which is positioned so that the free end 114b is configured to ride along the ramped surface as the lid portion 110 moves from the closed position to an open position and vice versa. It will be appreciated that the contact portion 126 between the free end 114b of the tongue 114 and the abutment formation 116 will therefore travel along the ramped surface 130 as the lid portion 110 moves from the closed position to the open position and vice versa. The series of three projections 124 are supported by an elongate projection 132 which extends in a direction substantially parallel to the axis of the hinged connection 128 between the lid portion 110 and the base portion 108.

As previously described, the lid portion 110 and the base portion 108 are coupled together by a hinged connection 128 which is integrally formed with the closure 102. The hinged connection 128 includes two hinges 128a, 128b and the resilient tongue 114 is positioned between the pair of hinges 128a, 128b. As illustrated in Figures 4(a)-(e), the lid portion 110 is hingedly coupled to the base portion 108 at the distal edge 110c of the side wall 110b of the lid portion 110.

In the illustrated embodiments, the closure is formed of a plastics material. The resilient element 114 and the abutment formation 116 are integrally formed with the closure 102.

The lid portion 110 also includes a guide projection 134 (see Figure 1) which is arranged to engage the base portion 108 and provide a point of contact between the lid portion 110 and the base portion 108 to aid closing of the closure 102.

As the closure 102 is moved into the closed position, it is releasably secured in the closed position by the latching mechanism 112. The latching arrangement 112 is shown in Figures 5(a)-(d) and comprises a releasable inter-digitation between the lid portion 110 and the base portion 108, e.g. a snap fitting arrangement. The lid portion 110 includes a first protrusion 136 and the base portion 108 includes a second protrusion 138. When the lid portion 110 is in the closed position, the first protrusion 136 is releasably secured against the second protrusion 138. The latching arrangement 112 also includes a release button 140, which includes the second protrusion 138, and is configured such that actuation of the release button 140 acts to disengage the first and second protrusions 136, 138, thereby de-latching the lid portion 110 from the closed position. This de-latching mechanism is illustrated in Figures 5a-d, as will be described in more detail below.

In use, as the lid portion 110 is moved from an open position to the closed position, the resilient tongue 114 rides down the ramped surface 130 of the abutment formation 116. As the lid portion 110 continues to be closed and the free end 114b of the resilient tongue 114 moves down the ramped portion surface 130, the resilient tongue 114 is deflected into the space defined by the aperture 118. When the lid portion is in the closed position, the resilient tongue 114 completely occupies the aperture 118 and lies flush with the outer surface 122 of the lid portion 110. This motion is shown by Figures 4(e) to 4(a).

As the resilient tongue 114 is deflected to occupy the aperture 118, potential energy is stored by the resilient tongue 114. The lid portion 110 is retained in the closed position by the latching mechanism 112. In the closed position, the first protrusion 136 of the lid portion and the second protrusion 138 of the release button 140 engage to secure the lid portion 10 in the closed position, as shown in Figure 5(a).

In the closed position, access to the dispensing opening 106 is prevented by the lid portion 110. When access to the dispensing opening 106 is required the lid portion 110 can be released by pressing the release button 140. With reference to Figures 5(a) to 5(d), as the release button 140 is depressed, the second protrusion 138 is moved away from the first protrusion 136, disengaging the first and second protrusions 136, 138 and de-latching the lid portion 110 from the base portion 108. When de-latched, the potential energy stored by the resilient tongue 114 acts to spring the resilient tongue 114 back to its undeflected position. In doing so, the free end 114b of the resilient tongue 114 rides up the ramped surface 130 of the abutment formation 116 (see Figures 4(a) to 4(e). This action drives the lid portion 110 into an open position. In this way, the closure can be opened simply by depressing the release button 140, permitting one-handed operation of the closure.

When in an open position, the dispensing opening 106 of the container 104 is exposed and so a user can access the contents of the container 104.

To close the closure 102, the lid portion 110 is moved towards the base portion 108 such that the first protrusion 136 re-engages the second protrusion 138 of the release button 140. Again, as the closure is moved into the closed position, the resilient tongue 114 is deformed to occupy the aperture 118. The resilient tongue 114 is guided to occupy the space defined by the aperture 118 by the free end 114b of the resilient tongue riding down the ramped surface 130 of the abutment formation 116. The closure 102 is then ready for release, and the resilient tongue 114 is primed for re-opening, when a user depresses the release button 140.

A second embodiment of the closure 202 is shown in Figure 6. Features corresponding to those of the first embodiment have been given corresponding reference numbers, except with the prefix "2". Only features that differ from those of the first embodiment are discussed herein.

As can be seen from Figure 6, the resilient element 214 and the abutment formation 216 are the same as those described in relation to the first embodiment. Similarly the latching mechanism 212 is the same as that described in relation to the first embodiment. The embodiment illustrated in Figure 6 differs from the closure shown in Figures 1-5 primarily in its aesthetic design.

A third embodiment of the disclosure is illustrated in Figures 7-10. Features corresponding to those of the first embodiment have been given corresponding reference numbers, except with the prefix "3". Only features that differ from those of the first embodiment are discussed herein.

With reference to Figure 7, a closure 302 for mounting on a container having a dispensing opening is generally indicated at 302. The closure 302 includes a base portion 308 and a lid portion 310. A resilient element 314 is provided in the base portion 308 and an abutment formation 316 is provided in the lid portion 310. With reference to Figure 9 an aperture 318 is defined by the base portion 308 of the closure 302 and the resilient element 314 is arranged to deform against the abutment formation 316, when the lid portion 310 is in the closed position, such that the resilient element 314 at least partially occupies the aperture 318. The resilient element 314 comprises a tongue having a first end 314a proximal the root of the tongue, and a second free end 314b.

The base portion 308 defines an annulus 342 arranged to encompass the dispensing opening when the closure 302 is mounted on a container. The base portion 308 includes a support formation which comprises a protrusion 344 extending around the perimeter of the annulus 342. In other words, the protrusion 344 forms a wall extending from an inner surface 346 of the base portion and extending around the perimeter of the annulus 342. It will be appreciated that the inner surface of the base portion 346 is arranged to face the inner surface of the lid portion 320 when the closure is in the closed position.

As can be most clearly seen in Figures 10(a)-(c) the first end 314a of the resilient element 314, i.e. the end proximal the root of the resilient element 314, is coupled to the support formation/protrusion 344. As can be seen from the figures, the root of the resilient tongue 314 is provided at or above the point at which the support formation 344 joins the inner surface of the base portion 346. In this way, the resilient tongue 314 does not lie flush with the inner surface of the base portion 346. In contrast, the free end 314b of the resilient element 314 extends away from the inner surface 346 of the base portion 308, i.e. away from the aperture 318.

The lid portion 310 of the closure 302 includes the abutment formation 316, which includes an elongate projection extending from the inner surface 320 of the lid portion 310. The elongate projection extends in a direction substantially parallel to the axis of the hinged connection 328.

The lid portion 310 and the base portion 308 are coupled together by a single hinge 328a, which is integrally formed with the closure 302.

With reference to Figures 10(c) to 10(a), in use, as the lid portion 310 is moved into the closed position, the abutment formation 316 comes into contact with the resilient element 314 at a position proximal its free end 314b. As the lid portion 310 is closed, the abutment formation 316 deflects the resilient element 314 such that it occupies the aperture 318. It will be appreciated that in this embodiment, the resilient element 314 partially occupies the aperture 318.

In some embodiments, the support formation (protrusion 344) is arranged to deform as the resilient element 314 is deformed, thereby increasing the potential energy stored in the base portion as the lid is moved to the closed position. For example, the support formation may twist as the resilient element 314 is deflected to occupy the aperture 318.

As can be seen from comparison of Figures 10(a)-(c), the force acting on the resilient element 314 as the abutment formation 316 pushes the resilient element 314 towards the aperture is substantially in a direction perpendicular to the axis of rotation of the hinged connection 328. This facilitates the spring open action of the resilient element 314 when the lid portion is de-latched from the closed position.

A fourth embodiment is shown in Figure 11. Features corresponding to those of 25 the first embodiment have been given the same reference numbers, except with the prefix "4". Only features which differ from those of the first embodiment are discussed herein.

As can be seen from Figure 11, the resilient element 414 and the abutment formation 416 are the same as those described in relation to the third embodiment. Similarly, the latching mechanism 412 is the same as that described in relation to the first embodiment. The embodiment illustrated in Figure 11 differs from the closure shown in Figures 7 to 10 primarily in its aesthetic design.

A fifth embodiment is shown in Figures 12(a)-(c). Features corresponding to those of the third embodiment have been given corresponding reference numbers, except with the prefix "5". The only features that differ from those of the third embodiment are discussed herein.

The fifth embodiment is similar to the third embodiment, except that the resilient element 514 is provided in the lid portion 510 and the abutment formation 516 is provided by the base portion 508. In this embodiment, the resilient element 514 is positioned to be flush with the outer surface of the lid portion 522 when the resilient element 514 is deformed to occupy the aperture 518. In this way a smooth outer appearance of the closure is provided. Otherwise, the spring open functionality of the closure 502 is substantially the same as that described in relation to the closure 302 shown in Figures 7-10.

With reference to Figure 13, an alternative latching mechanism is illustrated which may be applied to any of the closures disclosed herein. Features corresponding to those of the first embodiment have been given corresponding reference numbers except with the prefix "6". Only features that differ from those of the first embodiment are discussed herein.

The lid portion 610 of the closure includes a first protrusion 636 and the release button 640 of the base portion 608 has a receiving aperture 648. The first protrusion 636 is releasably secured within the receiving aperture 648 when the lid is in the closed position. As the release button 640 is depressed the first protrusion 636 is released from the receiving aperture 648 thereby releasing the lid portion 610 from the closed position.

In some embodiments, the closures described herein may be applied to a flow wrap container. However, it will be appreciated that the closures described herein may be applied to any size and shape of container.

As will be understood from the foregoing, closures can be configured for mounting onto a container, for example by means of a snap fit engagement, an interference fit, application of an adhesive, or other suitable means. In some embodiments, the closures described herein may be integral with the container. Further, it will be appreciated that the closures described herein may be formed of a separate lid and base portions. Alternatively the lid and base portions may be formed as a single component.

Whilst the embodiments disclosed herein are described as a container for wipes, it will of course be appreciated that containers disclosed herein may be used to house any desired object or material.

Features, integers or characteristics described in conjunction with a particular aspect, embodiment or example of the invention are to be understood as being applicable to any other aspect, embodiment or example described herein unless incompatible therewith.

Although the invention has been described above with reference to one or more embodiments, it will be appreciated that various changes or modifications may be made without departing from the scope of the invention as defined in the appended claims.

Claims

Claims 1. A closure for mounting on a container having a dispensing opening, said closure comprising: a base portion configured for mounting the closure on said container; a lid portion hingedly connected to the base portion and configured to move between an open position and a closed position; a latching mechanism for releasably securing the lid portion in the closed position; and a resilient element and an abutment formation, wherein the resilient element is arranged to deform against the abutment formation and store energy upon movement of the lid portion into the closed position, and to transfer stored energy to the lid portion upon the lid portion being de-latched from the closed position; the closure further comprising: an aperture defined by the closure and extending through the lid portion and/or base portion of the closure; wherein the resilient element is arranged to deform against the abutment formation such that the resilient element is deformed to occupy the aperture when the lid portion is in the closed position.
2. A closure according to claim 1, wherein the aperture extends through the lid portion from an inner surface of the lid portion to an outer surface of the lid portion and/or the aperture extends through the base portion from an inner surface of the base portion to an outer surface of the base portion.
3. A closure according to claim 1 or 2, wherein, the resilient element and the abutment formation are configured such that the resilient element does not extend beyond an outer surface of the closure, when the closure is in the closed position.
4. A closure according to any preceding claim, wherein the shape and/or size of the resilient element corresponds to that of the aperture.
5. A closure according to any preceding claim, wherein the resilient element comprises a first end, which is coupled to the closure, and a second free end distal the first end.
6. A closure according to claim 5, wherein the abutment formation is arranged to contact the resilient element at a contact point proximal the second end of the resilient element, optionally wherein the contact point is provided proximal the hinged connection between the base portion and the lid portion.
7. A closure according to claim 6, wherein the abutment formation comprises one or more formations which are arranged to contact the resilient element at one or more contact points, optionally such that the or each contact point forms a line of contact between the abutment formation and the resilient element, the line of contact being substantially parallel to the axis of the hinged connection.
8. A closure according to any of claims 5 to 7, wherein the lid portion comprises the resilient element, wherein the aperture is formed in the lid portion and wherein, when the resilient element is in an un-stressed condition, the resilient element extends away from the aperture.
9. A closure according to claim 8, wherein the lid portion comprises a body and wherein the resilient element comprises a tongue defined by the body.
10.A closure according to claim 9, wherein the body of the lid portion comprises a cover portion, arranged, in use, to extend over the dispensing opening when the closure is in the closed position, and a side wall extending from said cover portion, the side wall terminating at an edge distal the cover, wherein the tongue is defined by a portion of the body extending along the side wall, and wherein the free end of the tongue is provided proximal the edge of the side wall, optionally wherein the first fixed end of the tongue is provided proximal the cover.
11.A closure according to any of claims 8 to 10, wherein the base portion comprises the abutment formation and the abutment formation comprises at least one projection extending from an inner surface of the base portion, optionally wherein the abutment formation comprises an angled or ramped surface arranged such that the second free end of the resilient element is configured to ride along the angled surface as the lid portion moves from the closed position to the open position and vice versa.
12.A closure according to any of claims 5 to 7, wherein the base portion and/or lid portion comprises a body having the or an inner surface from which a support formation extends, and wherein the first end of the resilient element is coupled to said support formation such that the first end of the resilient element is offset from said inner surface.
13.A closure according to claim 12, wherein the base portion comprises the resilient element, the aperture is formed in the base portion and wherein, when the resilient element is in an un-stressed condition, the resilient element extends away from the aperture.
14.A closure according to claim 13, wherein the base portion defines an annulus for said dispensing opening of the container, and wherein the support formation comprises a protrusion extending around the perimeter of the annulus, wherein the first end of the resilient element is coupled to the protrusion.
15.A closure according to claim 13 or 14, wherein the lid portion comprises the abutment formation and the abutment formation comprises at least one projection extending from an inner surface of the lid portion, optionally wherein the abutment formation comprises an elongate projection extending in a direction substantially parallel to the axis of the hinged connection between the lid portion and the base portion.
16.A closure according to any preceding claim, wherein the lid portion and base portion are coupled together via a hinge and wherein the hinge is integrally formed with the closure, optionally wherein the lid and base portions are coupled via at least two hinges and the resilient element is provided between adjacent pairs of hinges.
17.A closure according to any preceding claim, wherein the lid portion comprises the or a cover portion, arranged, in use, to extend over the dispensing opening when the closure is in the closed position, and the or a side wall extending from said cover portion, the side wall terminating at the or an edge distal the cover, wherein the lid and base portions are hingedly connected via a hinge which is coupled to the edge of the side wall of the lid portion.
18.A closure according to any preceding claim, wherein the base portion defines the or an annulus for said dispensing opening of the container, wherein the aperture of the closure is spaced apart from said annulus.
19.A closure according to any preceding claim, wherein the closure comprises a single resilient element.
20.A closure according to any preceding claim, wherein the resilient element and/or the abutment formation are integrally formed in the closure.
21.A closure according to any preceding claim, wherein the closure comprises one or more guide projection(s)provided on the lid and/or base portion, wherein the guide projection(s) are configured to engage the base and/or lid portion to provide a point of contact between the lid portion and the base portion.
22.A closure according to any preceding claim, wherein the latching arrangement comprises a releasable inter-digitation between the lid portion and the base portion.
23.A closure according to claim 22, wherein the latching arrangement comprises the lid portion having a first protrusion, and the base portion having a second protrusion or a receiving aperture, wherein the first protrusion is releasably secured against the second protrusion or within the receiving aperture, when the lid portion is in the closed position.
24.A closure for mounting on a container having a dispensing opening, said closure comprising: a base portion configured for mounting the closure on said container, wherein the base portion comprises an abutment formation in the form of at least one projection extending from an inner surface of the base portion; a lid portion connected to the base portion by a hinge, wherein the hinge is integrally formed with the closure, and wherein the lid portion is configured to move between an open position and a closed position, wherein the lid portion comprises a cover portion, arranged, in use, to extend over the dispensing opening when the closure is in the closed position, and a side wall extending from said cover portion, the side wall terminating at an edge distal the cover, and wherein the lid portion comprises a resilient tongue defined by a portion of the lid portion and terminating proximal the edge of the side wall; a latching mechanism for releasably securing the lid portion in the closed position; wherein the resilient tongue is arranged to deform against the abutment formation and store energy upon movement of the lid portion into the closed position, and to transfer stored energy to the lid portion upon the lid portion being de-latched from the closed position; the lid portion further comprising an aperture defined by the lid portion and extending through the lid portion from an inner surface of the lid portion to an outer surface of the lid portion; and wherein the resilient tongue is arranged to deform against the abutment formation such that the resilient tongue is deformed to occupy the aperture when the lid portion is in the closed position.
25.A container comprising a closure in accordance with any preceding claim.