The present invention relates to packaging and more particularly to wiper blade packaging that is particularly well suited for holding a beam-type vehicle wiper blade, particularly those of pre-curved beam construction.
Beam-type windshield or windscreen wiper blades are growing in popularity throughout the United States and the world. Beam-type wiper blades have an elongate beam “backbone” that is curved along its length. They also have a rubber wiper element attached to one side of the beam and an adapter, used for releasably mounting the wiper blade to a vehicle, attached to the beam, extending outwardly from its other side. Examples of beam-type wiper blades are disclosed in U.S. Pat. Nos. 6,836,925, 6,813,923, and 6,550,096.
The curved beam helps ensure more constant and even pressure is applied along the entire windshield, providing a smoother, more consistent wipe. While conventional articulating framework wiper blades typically have somewhere around six or eight pressure points, beam-type wiper blades essentially have an infinite number of pressure points, helping to ensure the wiper element is urged against the windshield with substantially continuous pressure along substantially the entire length of the blade. A curved beam is also better able to conform to the curved contour of just about any vehicle windshield, which further ensures a smoother, more consistent wiping action.
During operation, each wiper blade is attached to an arm that moves back and forth across part of a windshield of a vehicle. The wiper element rides in concert along the surface of the windshield, essentially functioning as a squeegee to urge water in its path off the windshield.
Packaging such a beam-type windshield wiper blade poses unique challenges as compared to conventional wiper blades because of its curved beam. One challenge relates to the fact that beam-type wiper blades are significantly wider than conventional wiper blades. For example, where a conventional blade typically has a maximum transverse width no greater than three inches, a beam-type blade has a greater maximum transverse width that can be as wide as four or five inches.
Another challenge relates to protecting the wiper element. Due to the curvature of the beam and the arrangement of the wiper element, the end of the wiper element can become warped or distorted over time if the blade is not properly supported. This can cause that part of the wiper element to make poor contact with the windshield, which can cause undesirable streaking during wiper operation. This warpage or distortion can also extend along part of the squeegee edge of the wiper element, making these problems even worse. If too great, it can undesirably result in such warped or distorted wiper blades being returned to the store for refund.
Accordingly, it would be desirable and advantageous to provide packaging for a beam-type wiper blade that protects the blade while minimizing the volume it occupies.
The present invention is directed to a package for an elongate article that preferably is a wiper blade of pre-curved beam construction. The package has a plurality of package halves, at least one of which is configured with a blade seat that is capable of retaining the blade during packaging even so as to maintain the blade in a straighter configuration while doing so. The package preferably is of tri-fold construction having a spine hingably attaching the package halves.
The package halves can be substantially symmetrical, with the exception of on board latching structure and any outwardly extending flanges. Where asymmetrical, one of the package halves can differ, for example, by being equipped with a blade coupler or adapter recess.
Each package half preferably includes a seat that releasably receives one side or edge of a beam of a beam-type wiper blade. Each package half includes a support land, flat or abutment upon which part of the wiper blade rests during packaging such that it is engaged when the package is closed, such as to position or clamp the blade therebetween. In a preferred embodiment, part of the wiping element of the blade where it attaches to the beam rests upon the land, flat or abutment such that it is positioned or clamped between the package halves when they are closed.
The spine preferably is spaced from the tip or edge of the wiping element so as to protect it to prevent warping or otherwise deforming the wiping element. A hinge of preferably living construction joins the spine to each one of the package halves.
Each one of the package halves includes a plurality of integrally formed and longitudinally extending stiffening ribs that help strengthen and structurally rigidify the package when closed. Each one of the stiffening ribs preferably has an arcuate or curved sidewall cross section and has rounded ends where so equipped.
The spine also includes a plurality of pairs of stiffening ribs with one pair of the ribs being concave and curvilinear in cross sectional contour and another pair of the ribs outwardly projecting, having a generally Vee shaped cross section and defining therebetween a generally Vee shaped wiper element clearance recess.
When the package is closed, both edges or sides of the beam are received in a corresponding seat of each package halve helping to keep the wiper blade substantially straight in the package. Support flats of the package halves can bear against one another with any stiffening ribs formed in blade cradles of the opposed package halves overlying one another forming generally oval longitudinally extending stiffening tubes. In addition, a portion of each package half disposed along and adjacent the hinge can abut against an adjacent portion of the hinge with the end of the adjacent outwardly projecting rib of the spine being able to abut against part of the adjacent package half such that adjacent curved cross section ribs overlie one another forming elongate generally oval stiffening tubes. As a result of the package halves abutting these parts of the spine, resistance to crushing forces and bending moments is improved.
The package preferably is reclosable via a latching arrangement that preferably includes snaps that releasably engage snap receivers. The snaps and snap receivers are carried by upraised posts that preferably also serve as part of the blade seat of each corresponding package half. An outside edge or lip of the support flat of each cradle of the package halves also serve as part of each blade seat of each corresponding package half.
In a currently preferred embodiment, the package is a nest that is in turn received in another package that preferably also is of reclosable construction.
Objects, features and advantages of the present invention include providing a wiper blade package that is aesthetically attractive; that is of economical manufacture, that is durable, that is lightweight and low cost to ship, that is strong, that is easy to make and use, that is more versatile and adaptable, and which is durable, robust and reliable.
Numerous other aspects, features and advantages of the present invention will be made apparent from the following detailed description taken together with the drawing figures.
The drawings illustrate the best mode currently contemplated of practicing the present invention. One or more preferred exemplary embodiments of the invention are illustrated in the accompanying drawings in which like reference numerals represent like parts throughout and in which:
Before explaining one or more embodiments of the invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of the components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments, which can be practiced or carried out in various ways. Also, it is to be understood that the phraseology and terminology employed herein is for the purpose of description and should not be regarded as limiting.
The exemplary beam-type wiper blade 42 depicted in
A coupler 54 is attached to the beam 44 and is used to releasably attach the wiper blade 42 to a reciprocable wiper arm of a vehicle (not shown). The coupler 54 can include an adapter and can be configured to accept different types of adapters used to attach the blade 42 to different types of vehicles and wiper arm arrangements.
The blade 42 has a wiper element 56 made of an elastomeric material, such as rubber, and includes a wiping tip or edge 58 that makes contact with a windshield or windscreen of a vehicle to squeegee water off it during wiper operation. The wiping edge 58 is part of a generally triangularly shaped working segment 60 of the wiper element 56 that is attached by a relatively narrow hinge 62 (
Referring additionally to
Engagement between the panels 66 and 68 preferably is releasable to permit the package 40 to be opened to remove the blade 42 and can be re-closed should it be desired to put the blade 42 back in the package 40. Where the package 40 is displayed in a retail setting, being reclosable advantageously enables customer returns to be put back in the same package 40 (or a different package 40) and then put back on the display without it being apparent that the blade 42 had ever been returned.
The package 40 preferably includes a spine 70 located between the panels 66 and 68. The spine 70 extends substantially the length of the package 40 and overlies at least part of the wiper element 56 when the package 40 is closed. As is shown in
The spine 70 is attached to each package panel 66 and 68 by a corresponding hinge 72 and 74 that preferably is a living hinge or the like. As is shown in
As is shown more clearly in
Both package panels 66 and 68 can be three dimensionally contoured, such as in the manner shown in
In the preferred package embodiment shown in
While such support locations can overlie one another or be in line with one another, support locations located on one side of a seated beam 44 preferably are staggered relative to support locations located on the other side of the beam 44 as depicted in the preferred package embodiment shown in
One and preferably both package panels 66 and 68 include a blade cradle 102 that works in concert with the seat 82 to stably hold at least part of the beam blade 42 during packaging to facilitate ease of packaging and preferably also when the package 40 is closed. For example,
When the package 40 is closed around the wiper blade 42, the flat 104 of the cradle 102 also helps support the blade 42 and maintain it at a desired position within the package 40 by serving as a stop or locator against which the wiper element strip or spine 64 contacts or can contact. Where both package panels 66 and 68 are so equipped, the flat 104 of each cradle 102 of each panel 66 and 68 preferably also can clamp or abut against both sides of the wiper element strip or spine 64, helping to support it in the package 40. This clamping or locating function also advantageously helps to properly position the wiper blade 42 within the package 40 so as to ensure the package 40 does not come into contact with the wiping edge 58 and preferably also the working segment 60 of the wiper element 56.
By retaining a beam-style wiper blade 42 in a straightened condition, package size is advantageously minimized. By configuring the package 40 so it provides beam straightening support to the beam 44 of a blade received in the package 40 in such an integrated fashion, package size is further minimized. This produces a package 40 well suited for retail display applications, such as where several packages 40 are put in a box (not shown) that can also double as a retail display. Such a package 40 is also well suited for retail display on a shelf or by being hung on peg board or the like in a store.
By minimizing the maximum transverse width of a beam-style blade 42 by keeping it substantially straight when packaged, a package 40 constructed in accordance with the present invention can be hung in rows on retail display pegboard with adjacent rows being spaced apart no greater than or about the same distance as for packaging used for conventional wiper blades. In addition, minimizing the packaged width of beam-style blades using packaging made in accordance with a package 40 of the present invention advantageously takes less volume than if the beam 44 were not straightened (or even straightened to a lesser degree than substantially straight as with the preferred embodiment), which advantageously reduces shipping and storage costs.
As a result, a package 40 constructed in accordance with the present invention releasably and reclosably holds a pre-curved beam-style wiper blade 42 in a substantially straightened condition having a length that is a plurality of pairs times its width at its widest section and having a width at its widest section that is a plurality of times its thickness or depth. For example, a package 40 constructed in accordance can hold a pre-curved beam style wiper blade 42 ranging in length anywhere between ten inches and thirty inches, has a package width no greater than three inches, and preferably two inches or less, and has a package depth or thickness no greater than one inch. Such a package 40 can have such compact dimensions despite being made of a relatively thin synthetic, polymeric or plastic mater. For example, a preferred embodiment of the package 40 is formed of polyethylene terepthalate (PET or PETE) having a wall thickness that can vary between eight mils and twenty mils but preferably ranges between ten mils and fifteen mils. If desired, another suitable material, such as polyvinyl chloride (PVC) can be used. Being able to retain the packaged beam-style wiper blade 42 in a substantially straightened condition advantageously enables these desirably compact packaging dimensions to be achieved, even when making the package 40 out of such thin material.
Where made of PET or PVC, the package 40 preferably is thermoformed of a single sheet preferably using, for example, a high speed inline pressure forming process or the like. The package 40 preferably is transparent but can be made opaque so as to be colored if desired. If desired, the package 40 can include indicia (not shown) molded or otherwise formed in it. Such indicia can also be imprinted on the package 40, if desired. The package 40 can also be configured to accommodate a card (not shown), such as a display card overlying the spine 70, such as in between the hinges 72 and 74, and/or overlying one or both package panels 66 and 68.
The package 40 preferably is of tri-fold construction and is configurable as a clamshell, where desired. While the package 40 can be configured as a stand-alone package, the preferred embodiment of the package 40 depicted in
Where configured as a package nest, the package 40 preferably is received in another package that can be a sleeve, a carton, a tube, or another package that also can be of reclosable construction. For example, in one preferred embodiment, a package 40 constructed in accordance with the present invention is a nest that is received in an outer package that preferably is of reclosable construction. An example of one preferred outer package that is of reclosable construction is the reclosable clamshell package 140 shown in
A package 40 constructed in accordance with the present invention includes at least one latching arrangement 84 that preferably is of integral construction for enabling the package 40 to be closed. The latching arrangement 84 preferably is of releasable construction to enable the package 40 to be opened and re-closed, such as where it is desired to put a beam-style wiper blade 42 back in the package 40 and return it.
In the preferred embodiment shown in
Each latching arrangement 84 includes at least one latch that includes a portion of one package panel 66 that engages a portion of the other package panel 68. For example, in the preferred embodiment shown in
Each snap 86 preferably includes a boss 90 that protrudes outwardly from an upraised post 92 that has a shoulder 94 encircling it that abuts against a shoulder 96 encircling a recessed pocket 98 formed in an upraised pedestal 100 of the snap receiver 88 when the boss 90 of the snap 86 is received in the pocket 98 of the snap receiver 88. A suitable fit, such as a tight fit, an interference fit, or the like, is provided between the snap 86 and snap receiver 88 to prevent unintended disengagement. For example, the outer diameter of the boss 90 preferably is the same as or slightly larger than the inner diameter of the pocket 98 which receives the boss 90 to provide a tight frictional engagement therebetween.
Each beam receiving seat 82 preferably is defined on one side by part of the latching arrangement 84, which is disposed outside of a seated wiper blade beam 44 and is defined on the other side by at least part of an upraised guide wall 106 formed by part of each adjacent cradle flat 104 located opposite a coupler accommodating clearance 108 of the package 40, which is disposed inside of the seated beam 44. In the preferred embodiment depicted in
Depending on the magnitude of the bending moment imparted by the wiper blade 42 wanting to return its normal curved shape when received in the package 40, the package 40 preferably is constructed with one or more stiffening and/or structurally rigidifying features formed in it that help it to oppose the moment without deflecting or at least deflecting within acceptable limits or tolerances.
For example, in the preferred embodiment shown in
If desired, the wider flange or flange section 114 can be contoured so as to facilitate packaging of additional materials, including blade wiping pads, adapters and the like. If desired, cutouts in the flange or flange section 114 can be provided for such other materials.
To impart additional stiffness to the package 40, the flat 104 of each cradle 102 preferably has a longitudinally extending stiffening rib 118 formed in it. Each such stiffening rib 118 is elongate and has a length less than that of the cradle 102 in which it is formed. If desired, the cradle 102 on one or both package panels 66 and 68 can extend substantially the length of the package 40 instead of terminating on one side or the other side of the coupler accommodating recess 108 with the resultant stiffening rib having a length longer than that shown in
To increase and help maximize package stiffness while producing a package 40 that is readily formable by thermoforming, each rib 118 is of curved or arcuate cross sectional contour such that it is of concave construction as it is recessed into the flat 104 of each cradle 102 equipped with such a rib 118. Each end of each such stiffening rib 118 preferably is rounded, thereby advantageously providing improved package stiffness while simultaneously minimizing formation of stress risers along the rib 118. When the package 40 is closed, ribs 118 of one package panel 66 overlie the other package panel 68 forming an oblong torsion resistant tube or tubular structure (not shown) helping increase stiffness and torsional rigidity.
Each package panel 66 and 68 preferably also includes an elongate stiffening rib 120 that extends along a corresponding adjacent hinge. Each rib 120 preferably extends substantially the length of the package 40 and also has a curved or arcuate cross sectional contour.
The spine 70 of the package 40 is also three dimensionally contoured to increase package stiffness and improve structural rigidity. As is shown more clearly in
In addition, the spine 70 has a second pair of stiffening ribs 126 that both project outwardly and are disposed at an acute angle relative to one another so as to form a generally Vee shaped wiping element edge clearance recess 128 between the wiping element of a wiper blade 42 received in the package 40 and the spine 70. Each outwardly projecting stiffening rib 126 preferably has a generally Vee shaped cross sectional contour. These ribs 126 along with the clearance recess 128 between the spine 70 and the wiping element edge 58 preferably extend substantially the length of the package 40. As a result of the spine 70 extending substantially the length of the package 40, it overlies substantially the entire wiping element edge 58, advantageously providing protection to substantially the entire wiper element 56.
Referring to
A package 40 constructed in accordance with the present invention is easy to close, as each snap 86 is easily pressed into engagement with its corresponding snap receiver 88 when closing the package 40. The package 40 is just as easy to open as one as preferably both package panels 66 and 68 are grasped and pulled apart to disengage each snap 86 from its snap receiver 88.
In assembly, a beam-style wiper blade 42 is manipulated to straighten it and so as to insert one side edge of its beam 44 into the seat 82 in one of the package panels 66 or 68. Thereafter, the other one of the package panels 68 or 66 is folded over and brought toward the wiper blade 42 until the other side edge of the beam 44 is received in the seat 82 of the other one of the package panels 68 or 66. Thereafter, the package panel is moved closer to the other package panel until each one of the snaps 86 begin to seat in a corresponding snap receiver 88. To the extent needed, additional force is applied to one or both package panels 66 and 68, including in the vicinity of one or more of the snaps 86 and/or snap receivers 88, until each one of the snaps 86 releasably but positively engages its corresponding snap receiver 88.
It is also to be understood that, although the foregoing description and drawings describe and illustrate in detail one or more preferred embodiments of the present invention, to those skilled in the art to which the present invention relates, the present disclosure will suggest many modifications and constructions, as well as widely differing embodiments and applications without thereby departing from the spirit and scope of the invention.
This application claims all benefits from and priority to under 35 U.S.C. Section 119(e) to U.S Provisional Application Ser. No. 60/567,748, filed May 3, 2004, and to U.S Provisional Application Ser. No. 60/587,392, filed Jul. 13, 2004, the entirety of both of which are hereby expressly incorporated herein by reference.
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