1. Field of the Invention
The present invention is directed to closures and associated methods of fabricating closures and, more specifically, to closures having actuators to open and/or close lids of the closure, as well as methods of fabricating closures with actuators.
2. Description of the Related Art
Conventional containers for various products often include a cap for sealing the opening of the container. In some applications, the cap may include a hinge, thus allowing the container to be opened and closed while leaving the cap connected to the container.
Embodiments of the invention provide a closure device for a container and methods for making closure devices for containers, the closure device having a repositionable closure lid pivotably mounted to a closure body. A repositionable actuator may be incorporated into the closure body for repositioning the closure lid with respect to the closure body. The closure body may include a spout having an opening that may be closed by the closure lid.
In a first aspect, a hinged closure according to the present invention may include a closure body including a spout having an outlet orifice located at a first end, an outer circumferential skirt including a first through opening, and a connecting wall extending between the spout and the outer circumferential skirt, the connecting wall having an exterior side and an interior side opposite the exterior side, and a coupling for mounting the closure body to a container; a closure lid mounted to the closure body by a hinge, the closure lid being repositionable between a closed position and an open position; an actuator movably mounted to the closure body, the actuator at least partially occupying a cavity defined by an inner surface of the outer circumferential skirt and the interior side of the connecting wall, the actuator having a first end and a second end, the first end of the actuator extending at least partially into the first through opening of the outer circumferential skirt, the actuator being radially movable between a unloaded position, in which the first end the actuator occupies at least a portion of the first through opening of the outer circumferential skirt, and a loaded position, in which the first end of the actuator has been depressed radially inwardly with respect to the outer circumferential skirt; and a spring operative to bias the actuator from the loaded position to the unloaded position; such that moving the actuator from the unloaded position to the loaded position repositions the closure lid from the closed position, if closed, to the open position; and such that the spout, the outer circumferential skirt, the connecting wall, and the coupling are formed as a unitary body.
In a detailed embodiment of the first aspect, the closure lid may includes an angled wall slidably contacting the first end of the actuator as the actuator is being moved from the unloaded position to the loaded position when the closure lid is in the closed position and the second end of the actuator may include a tab applying a force to the hinge as the actuator is being moved from the unloaded position to the loaded position when the closure lid is in the closed position, the second end of the actuator extending at least partially into a second through opening in the outer circumferential skirt proximate the hinge. The angled wall may include a surface facing generally towards the first through opening, the surface of the angled wall extending at an angle away from the connecting wall in a direction away from the spout; and movement of the actuator from the unloaded position to the loaded position may cause the first end of the actuator to slide along the surface of the angled wall, thereby exerting a force on the angled wall in a direction generally away from the connecting wall. The hinge may include a knuckle hinge. The second end of the actuator may extend through a second through opening in the outer circumferential skirt proximate the hinge and movement of the actuator from the unloaded position to the loaded position may cause the second end of the actuator to slidably contact the knuckle hinge, thereby exerting an opening force on the knuckle hinge.
In another detailed embodiment of the first aspect, the spring member may be a spring arm, the spring arm and the actuator may be formed as a unitary component, and the spring arm may be in sliding contact with a stationary surface of the closure body.
In yet another detailed embodiment of the first aspect, at least one of the actuator and the closure body may include at least one detent for mounting the actuator to the closure body in a snap-fit engagement.
In yet another detailed embodiment of the first aspect, the closure lid may include a latch, the latch may be releasably engaged with a lip located on the first end of the actuator when the closure lid is in the closed position and the actuator is in the unloaded position, and the lip may be disengaged from the latch when the actuator is in the loaded position.
In yet another detailed embodiment of the first aspect, in the closed position, a sealing portion of the closure lid may obstruct the spout at the outlet orifice and, in the open position, the sealing portion of the closure lid may not obstruct the spout.
In a second aspect, a hinged closure according to the present invention may include a closure body including a spout having an outlet orifice located at a first end, the spout having a second end opposite the first end, a coupling for mounting the closure body to a container, the coupling mounted proximate the second end of the spout, and an outer circumferential skirt substantially circumferentially surrounding the coupling and defining a generally annular cavity between an inner wall of the outer circumferential skirt and an outer wall of the coupling, the outer circumferential skirt including a first through opening and a second through opening, the second through opening being located generally opposite from the first through opening so that the coupling interposes the first through opening and the second through opening; a closure lid mounted to the closure body by a hinge, the closure lid being repositionable between a closed position and an open position; and an actuator slidably mounted to the closure body at least partially within the cavity and movable between a loaded position and an unloaded position; wherein moving the actuator from the unloaded position to the loaded position repositions the closure lid from the closed position, if closed, to the open position; wherein a first end of the actuator extends at least partially into the first through opening and a second end of the actuator extends at least partially into the second through opening; and wherein the spout, the outer circumferential skirt, and the coupling are formed as a unitary body.
In a detailed embodiment of the second aspect, the hinged closure may include a spring operative to bias the actuator towards the unloaded position. The spring may be a spring arm unitarily formed with the actuator, and the spring arm may be in sliding contact with the outer wall of the coupling.
In another detailed embodiment of the second aspect, at least one of the actuator and the closure body may include at least one detent for mounting the actuator to the closure body in a snap-fit engagement.
In yet another detailed embodiment of the second aspect, the closure lid may include a latch, the latch may be releasably engaged with a lip located on the first end of the actuator when the closure lid is in the closed position and the actuator is in the unloaded position, and the lip may be disengaged from the latch when the actuator is in the loaded position.
In yet another detailed embodiment of the second aspect, the actuator may circumscribe the outer wall of the engagement portion.
In yet another detailed embodiment of the second aspect, in the closed position, the closure lid may obstruct the outlet orifice and, in the open position, the closure lid may not obstruct the outlet orifice.
In a third aspect, a method for fabricating a closure for a container may include the steps of providing a container closure comprising a closure body and a repositionable lid mounted to the closure body obstructing a spout of the closure body in a closed position and not obstructing the spout of the closure body in an open position, the closure body including a receiver end for mounting to a container; positioning the container closure into a process tool so that the receiver end of the closure body is accessible; and installing an actuator into the container closure by way of the receiver end to provide a snap-fit engagement, where at least one of the actuator and the container closure includes detents to maintain the snap-fit engagement between the actuator and the container closure, and where operation of the actuator is operative to reposition the repositionable lid to the open position.
In a detailed embodiment of the third aspect, the actuator may be movable between a loaded position and an unloaded position, moving the actuator from the unloaded position to the loaded position may be operative to reposition the repositionable lid from the closed position, if closed, to the open position, and the actuator may be biased with respect to the container closure towards the unloaded position.
In another detailed embodiment of the third aspect, the step of installing the actuator may include installing the actuator into the closure body along a substantially axial path relative to the closure body.
In yet another detailed embodiment of the third aspect, the method may include the step of, after the step of providing the container closure, manipulating the repositionable lid into the closed position.
In yet another detailed embodiment of the third aspect, the method may include the step of, after the step of installing the actuator into the container closure, installing the receiver end of the closure body onto a container while maintaining the repositionable lid in the closed position.
In yet another detailed embodiment of the third aspect, the process tool may a high speed assembly machine.
In a fourth aspect, a method of assembling a closure for a container may include the steps of providing a closure including a closure body mounted to a closure lid by a hinge, the closure body including a receiving end for coupling to a container, a first through opening in the closure body, a second through opening in the closure body located proximate the hinge and arranged laterally opposite from the first opening, and a spout for dispensing contents of the container through the closure body; positioning the closure into a process tool so that the receiving end of the closure body is accessible; providing an actuator, the actuator including a button end sized to fit within the first through opening in the closure body and a tab end sized to fit within the second through opening in the closure body; and installing the actuator into the closure body via the receiving end so that the button end extends at least partially into the first through opening and the tab end extends at least partially into the second through opening.
In a detailed embodiment of the fourth aspect, the step of providing the closure may include the steps of molding the closure body with the closure lid in an open position and placing the closure lid in a closed position relative to the closure body.
In another detailed embodiment of the fourth aspect, the method may include the step of installing the receiving end of the closure body onto a container.
In yet another detailed embodiment of the fourth aspect, the actuator may include at least one spring unitarily formed with the actuator, the spring being operative to bias the actuator towards the button end.
The exemplary embodiments of the present invention are described and illustrated below to encompass container closures, as well as methods of fabricating container closures. Of course, it will be apparent to those of ordinary skill in the art that the embodiments discussed below are exemplary in nature and may be reconfigured without departing from the scope and spirit of the present invention. However, for clarity and precision, the exemplary embodiments as discussed below may include optional steps, methods, and features that one of ordinary skill should recognize as not being a requisite to fall within the scope of the present invention.
Referencing
Referring to
A circumferential skirt 130 surrounds a lower portion of the spout 108 and intersects the proximal wall 112. The skirt 130 is slightly conical, with a distal rim 132 having a greater circumference than a proximal end 134, which intersects the proximal wall 112.
Referring to
Referring to
Two lateral guides 158, 160 extend from a rear face 162 of the button 148 in a substantially parallel orientation with respect to one another. The space between the guides 158, 160 is selected to be slightly larger than the outer diameter of the cylindrical wall 122. An arcuate bridge 164 protrudes from the rear face 162 of the button 148 and extends between the guides 158, 160, where the arcuate shape of the bridge 164 approximates the arcuate shape of the exterior of the cylindrical wall 122. Each guide 158, 160 includes an inwardly biased spring arm 166. Opposite the button 148, the guides 158, 160 are rounded and converge to form a backstop 168. In this manner, the guides 158, 160, backstop 168, and arcuate bridge 164 cooperate to define an enclosed through hole 170 adapted to be at least partially occupied by the cylindrical wall 122, where each of the spring arms 166 is adapted to be biased against the cylindrical wall 122, on the button side of the cylindrical wall (See
As show in
During insertion, the actuator 146 contacts and passes beyond several internal features that operate to retain the actuator in a snap-fit engagement with the cap 104. A first of these features is a forward ledge 176 that partially defines the bottom of the first opening 138. The forward ledge 176 includes an angled face 178 (see
The actuator 146 is repositionable with respect to the cap 104 from an unloaded position to a loaded position. When the actuator 146 is in its unloaded position, the button 148 is positioned within the first opening 138 substantially flush with the skirt 130. To reposition the actuator from the unloaded position to the loaded position, the button 148 is manually depressed in a radial direction to drive the entire actuator 146 in parallel with the midline 140 and substantially linearly with respect to the cap 104. The actuator 146 rides upon the horizontal surfaces 184 of the first and second pairs of detents 136, 142 and is retained in a substantially linear path by a pair of alignment fins 186 (see
Referencing
Referring to
Repositioning the lid 102 from the closed position (see
Referring to
The second exemplary closure 300 is very similar to the first exemplary closure 100, but does differ in one primary respect: the second exemplary closure 300 does not utilize its actuator 342 to retain the lid 302 in the closed position. Instead, the closure 300 includes a circumferential groove 309 (see
Each of the foregoing exemplary embodiments is designed for high speed automated assembly. In particular, each of the embodiments is amendable to assembly by high speed machinery that take the closures 100, 300 in the closed position (i.e., where the lid closes off the orifice of the spout) and inserts the repositionable actuators 146, 342 from underneath the closure. Arrow 149 and arrow 343 indicate the direction of insertion of the repositionable actuators 146, 342 in
While the foregoing embodiments have been described as including butterfly hinges, it is to be understood that other hinges may be utilized, such as simple living hinges or other appropriate hinges known in the art or later developed.
Following from the above description and invention summaries, it should be apparent to those of ordinary skill in the art that, while the methods and apparatuses herein described constitute exemplary embodiments of the present invention, the invention contained herein is not limited to these precise embodiments and that changes may be made to the exemplary embodiments without departing from the scope of the invention as defined by the claims. Additionally, it is to be understood that the invention is defined by the claims and it is not intended that any limitations or elements included in the exemplary embodiments set forth herein are to be incorporated into the interpretation of any claim element unless such limitation or element is explicitly stated. Likewise, it is to be understood that it is not necessary to meet any or all of the identified advantages or objects of the invention disclosed herein in order to fall within the scope of any claims, since the invention is defined by the claims and since inherent and/or unforeseen advantages of the present invention may exist even though they may not have been explicitly discussed herein.
This application claims the benefit of U.S. Provisional Application No. 60/922,014, filed Apr. 5, 2007, which is hereby incorporated by reference in its entirety.
Number | Date | Country | |
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60922014 | Apr 2007 | US |