1. Field of the Invention
The present invention generally relates to spectacles and eyeglasses. More particularly, the present invention relates to rimless mounting of lenses in spectacles and eyeglasses.
2. Description of the Related Art
Eyewear generally comprises two lenses that are connected by a bridge and two temples that extend rearward from a lens connection location to the ears of a user. Most eyewear over time has featured a frame that generally encircled each of the lenses. Recently, rimless constructions have been designed.
One rimless construction is a so-called three piece mount. A three piece mount features a bridge and two temples that are fastened to a front or rear surface of the lens. In other words, the bridge and temples are secured using fasteners that extend through the lens. To use such a configuration, holes or slots must be formed in the lens. Such a construction can be difficult to construct due to the need to form the holes or slots. Moreover, such a construction obscures a portion of the lens through which a wearer may attempt to look, and may also cause distortion and cracks (often referred to as “starcracks”) within the viewing portion of the lens. Accordingly, such a construction is less desired.
In addition, so-call three piece mounts generally require two holes, notches or slots to attach each temple or bridge to each lens in order to reduce the likelihood of accidental rotation of the temples or bridge that may occur if only one hole or slot is used for each connection. Such a construction is disadvantageous because it requires a total of eight holes, notches or slots to attach both lenses to the bridge and temples. Accordingly, a construction is desired that involves fewer holes, notches or slots and that positions such features outside of the viewing area.
Moreover, constructions are known in which a clamp grips a portion of the peripheral edge of the lens. See, for example, U.S. Pat. No. 4,895,438. Such a construction still obscures a portion of the lens through which a wearer may attempt to look. Moreover, the clamping construction is complicated and difficult to work with.
Zider et al. (U.S. Pat. No. 6,164,775) disclosed a construction in which projections were formed on the lenses and those projections were gripped by an attachment member through direct gripping or through a vertical sliding motion. The desired effect was to provide lenses that were easily changed and adjusted without the use of structural rims, cords or screws. While such a configuration may be useful in select circumstances, the resulting eyewear is not sturdy enough for day to day use. Moreover, having eyewear in which the lenses are not securely mounted can frustrate the wearers of prescription eyewear.
Thus, a need exists for a rimless eyewear construction that is simple to assemble, that is secure when assembled and that provides connection locations for the basic components outside of the viewing portion of the lenses.
One aspect of some embodiments of the present invention involves eyewear that comprises a first lens. The first lens comprises a first bridge connecting portion, a first viewing portion and a first temple connecting portion. The first viewing portion comprises a first peripheral surface. The first bridge connecting portion extends outward from the first peripheral surface. The first temple connecting portion extends outward from the first peripheral surface. A first bore extends into the first temple connecting portion. A second lens comprises a second bridge connecting portion, a second viewing portion and a second temple connecting portion. The second viewing portion comprises a second peripheral surface. The second bridge connecting portion extends outward from the second peripheral surface. The second temple connecting portion extends outward from the second peripheral surface. A second bore extends into the second temple connecting portion. A bridge covers at least a portion of the first bridge connecting portion and is secured to the first bridge connecting portion. The bridge also covers at least a portion of the second bridge connecting portion and is secured to the second bridge connecting portion. A first temple covers at least a portion of the first temple connecting portion and is secured to the first temple connecting portion by a first member that extends into the first bore. A second temple covers at least a portion of the second temple connecting portion and is secured to the second temple connecting portion by a second member that extends into the second bore.
Another aspect of some embodiments of the present invention involves eyewear comprising a lens. The lens comprises a viewing portion and a connecting portion. The lens comprises a peripheral surface with the viewing portion of the lens being defined inside of the peripheral surface of the lens and the connecting portion of the lens being defined outside of the peripheral surface of the lens. The connecting portion of the lens comprises a mounting bore. An eyewear frame member covers at least a portion of the connecting portion of the lens and an eyewear frame connecting member extends from a portion of the eyewear frame member and into the mounting bore of the connecting portion of the lens such that the eyewear frame member is secured to the lens by the eyewear frame connecting member and the connecting portion of the lens.
These and other features, aspects and advantages of the present invention will now be described with reference to the drawings of several preferred embodiments. The embodiments are intended to illustrate and not to limit the invention.
With reference now to
The viewing portion 114 and the connecting portion 116 preferably are integrally formed by, for example, molding or machining or a combination of suitable manufacturing steps. Such integrally forming results in a monolithic construction. While less desirable from a strength and durability standpoint, in some embodiments, it is possible for the connecting portion 116 to be formed separately from the viewing portion 114 and then bonded to the viewing portion 114. In a preferred configuration, the connecting portion 116 is defined relative to the viewing portion 114 such that a line connecting the outer edge of the viewing portion 114 at two junctures between the connecting portion 116 and the viewing portion 114 separates the connecting portion 116 from the viewing portion 114. In other words, the lens generally has a peripheral (e.g., side) surface and the connection portion 116 extends outward from the peripheral surface.
A user of the eyewear 100 can see through the viewing portion 114 while the connecting portion 114 is positioned outside of the viewing portion 114 to reduce the likelihood of the connecting portion 114 obscuring the view through the viewing portion 114 when the eyewear is assembled. In the illustrated configuration, the connection portion 116 can comprise a temple connecting portion 120 and a bridge connecting portion 122. In other words, the connection portion 116 comprises at least two separate and distinct portions with the viewing portion 114 being at least partially positioned between two of those separate and distinct portions of the connecting portion 116.
While the illustrated construction features the temple connecting portion 120 and the bridge connecting portion 122, in some constructions, at least one of the first and second lenses 102, 104 can be provided with only one connecting portion 116. In such a construction, the connecting portion 116 can be positioned such that it connects to a frame member, such as a brow bar, for example but without limitation. The frame member, in such a configuration, can function as one or more of the bridge and the temples.
With reference to
Preferably, in the configuration shown in
As shown in
A less desired configuration can be formed wherein the recess 126 is defined by four walls. Such a configuration is less desired because the position of the connecting portion 120 within the recess 126 described above can be more easily adjusted without the rearward facing wall. Nevertheless, it is possible to form the recess with four outwardly exposed walls. Moreover, it is possible to form the recess 126 with one or two walls and, in some configurations, to have the connecting portion 120 in combination with the temple 112 define a hinge-like structure (e.g., the connecting portion 120 defines one portion of the hinge structure while the temple defines the second portion of the hinge structure) although such a configuration is likely to be less durable than positioning a hinge along the temple 112 as illustrated.
With prescription lenses, due to requirements relating to the angular orientation of some prescriptions, if the recess 126 is defined by a single wall, the wall and the connecting portion preferably are joined in a manner that reduces the likelihood of the wall and the connecting portion pivoting with respect to each other. For example, a pair of spaced apart pins or screws can substantially fix an angular orientation of the temple and the lens or of the bridge and the lens. In some embodiments, a hole and notch can be provided in the connecting portion to reduce the likelihood of rotation among the components. Advantageously, when the recess 126 is defined by two or more walls, the lenses, temples and bridges are less likely to move significantly relative to each other and the angular orientations among the components are more likely to be maintained.
The temple 112 preferably comprises one or more openings 132. The openings 132 can define a passage through which a pin 134 can extend. The pin 134 extends through or into the first opening 132, through the bore 124 and through or into the second opening 132. The pin 134 couples the temple connecting portion 120 to the temple 112. In some configurations, the bore 124 formed in the temple connecting portion 120 has an inner diameter that is slightly larger than an outer diameter of the pin 134. In some configurations, at least one of the openings 132 has an inner diameter that is substantially the same as, or slightly smaller than, the outer diameter of the pin 134 such that the pin 134 and the opening 132 have an interference or force fit interface. In some configurations, the pin 134 is secured within the opening 132 or openings 132 through a suitable manner, including but not limited to adhesion, cohesion, welding, brazing, threaded members, force fit, interference fit, and the like.
With reference to
While the illustrated eyewear 100 have been disclosed by describing a coupling configuration between the temple 112 and the temple connecting portion 120, the same coupling configuration also can be used to join the bridge 106 to the bridge connecting portion 122 of each lens. Thus, the same reference numerals for the bore 124, the openings 132, the pin 134 and the other related components also refer to components used to connect the bridge 106 to the bridge connecting portion 122.
When assembling the eyewear 100, the lenses 102, 104 first are prepared. Preferably, each lens 102, 104 is prepared to define the viewing portion 114 and the connecting portion 116. In some embodiments, the connecting portion 116 comprises the temple connecting portion 120 and the bridge connecting portion 122. The bridge connecting portions 122 of the two lenses 102, 104 can be connected together with the bridge 106 by securing pins 134 within the respective openings 132 and bores 124. Thus, the bridge can join together the first and second lenses 102, 104. The temples 110, 112 can be secured to the temple connecting portions 120 of the respective lenses 102, 104 by securing the pins 134 within the respective openings 132 and bores 124. Thus, the temples and bridges can be simply and securely coupled to the lenses 102, 104.
As illustrated in
The temple 112 illustrated in
With reference to
The illustrated reinforcing member comprises an upper wall 150, a lower wall 152 and a side wall 154 that extends between at least a portion of the upper wall 150 and the lower wall 152. In some embodiments, the reinforcing member can be a single plate without any bends and can simply overlie at least a portion of a wall of the connecting portion 116. At least one opening 156, and preferably at least two openings 156, are defined through each of other upper wall 150 and the lower wall 152 in the illustrated embodiment. The openings preferably correspond in location with the bores 140 and the openings 142 formed in the temple 112 or bridge 106. As such, in some embodiments, any openings may extend through only one wall of the reinforcing member.
In assemblies featuring the reinforcing member 148, the openings 156 of the reinforcing member or the openings 142 in the member (e.g., the temple 112 or the bridge 106), or both, can have a smaller inner diameter than the inner diameter of the passage. More preferably, in some assemblies featuring the reinforcing member 148, the openings 156 in the reinforcing member 148, the openings 142 in the associated member (e.g., the temple 112 or the bridge 106), or both, can have a smaller inner diameter than an outer diameter of the associated pin 144. In such a manner, the pin 144 can be secured in place through interference between the respective inner and outer surfaces.
In some configurations, the pin 144 is secured in position relative to the bores 140 through a suitable manner, including but not limited to adhesion, cohesion, welding, brazing, threaded members, force fit, interference fit, and the like. With reference now to
While the illustrated eyewear 100 have been disclosed by describing a coupling configuration between the temple 112 and the temple connecting portion 120, the same coupling configuration also can be used to join the bridge 106 to the bridge connecting portion 122 of each lens. Thus, the same reference numerals for the bore 124, the openings 132, the pin 134 and the other related components also refer to components used to connect the bridge 106 to the bridge connecting portion 122.
Similar to the constructions described above, the openings 156 of the reinforcing member or the openings 142 in the member (e.g., the temple 112 or the bridge 106), or both, can have a smaller inner diameter than the inner diameter of the passage. More preferably, in some assemblies featuring the reinforcing member 148, the openings 156 in the reinforcing member 148, the openings 142 in the associated member (e.g., the temple 112 or the bridge 106), or both, can have a smaller inner diameter than an outer diameter of the legs (or at least the relevant portion of the legs) of the clips 162. In such a manner, the clips 162 can be secured in place through interference between the respective inner surface of the openings and the outer surfaces of the clips 162.
With reference now to
While the illustrated configuration shows the temple 112 being connected to the lens 102, 104 at the temple connecting portion 120, a similar configuration can be used to connect the bridge to the bridge connecting portion 122. As illustrated, the recess 126 of the illustrated temple 126 fits over the connecting portion 116 (i.e., the temple connecting portion 120 or the bridge connecting portion) and preferably slides over at least a portion of a forward facing surface of the connecting portion 116. A reinforcing member 182 can slide over at least a portion of at least a rearward facing surface of the connecting portion 116. The illustrated reinforcing member 182 can telescope relative to the temple 112 such that connecting portions of varying thicknesses can be accommodated by the assembly (see the dotted lines in
While the illustrated reinforcing member 182 in positioned between the connecting portion 116 and the associated member (i.e., the temple 112 or the bridge 106), it is possible to have the associated member positioned between the connecting portion 116 and the reinforcing member 182. In other words, it is possible to have the reinforcing member 182 positioned over an otherwise outer surface of the associated member. Moreover, while the illustrated reinforcing member 182 covers a rear surface of the connecting portion 116, it is possible to have the reinforcing member 182 cover a forward surface of the connecting portion while the opening defining the recess 126 opens through a forward surface of the temple 116 or bridge 106. Further, in some configurations, the associated member (i.e., temple 112 or bridge 106) does not have a recess that extends through a wall of the associated member such that the associated member itself encloses the connecting portion 116 and the reinforcing member 182 can extend over at least a portion of as few as one surface or as many as five surfaces of the connecting portion 116.
With reference again to
In some embodiments, a compression mounting can be used to couple the member (i.e., the temple 112 or the bridge 106) to the connecting portion 116. The compression mounting can use a fastener that is cut to length after assembly and a snap fit cap can be placed over the cut fastener (i.e., the cap can be forced over a barb or ridge of the fastener) to secure the assembly. In some constructions a threaded fastener can be used.
In some configurations, the connecting portion 116 can be formed such that at least one surface of the connecting portion 116 is flush with a rearward or forward surface of the associated lens 102, 104. For example, in the illustrated configuration, the rearward surface of the connecting portion 116 extends from the rearward surface of the lens 102, 104. In some configurations, however, the connecting portion 116 can extend outward from a more central portion of the lens 102, 104. Other configurations also are possible.
The connecting portion 116 can be formed such that the connecting portion 116 curves. In some embodiments, the curve of the connecting portion 116 continues the base curve of the lens. Such a configuration is shown, for example, in
In some embodiments, however, the connecting portion 116 can be formed such that the connecting portion 116 does not follow the base curve of the lens. Such a configuration is shown, for example, in
In some embodiments, the connecting portion 116 can be cut such that the connecting portion 116 is generally perpendicular to the axis of the base curve of the lens. Such a configuration is shown, for example, in
The embodiment of
The illustrated configuration uses two pins 234 to join the temple 212 to the connecting portion 220. The pins 234 can be secured in position relative to the temple 212 and the connecting portion 220 through a suitable manner, including but not limited to adhesion, cohesion, welding, brazing, threaded members, force fit, interference fit, and the like. In some configurations, a reinforcing member (not shown) can be used with the simple temple 212 of
For clarity,
The mounts 313 can have any suitable construction. In some embodiments, the mounts 313 can comprise one or more pins 315 (see
In some embodiments, the mounts 313 can comprise a threaded portion 317 (see
For clarity,
Advantageously, in the constructions described above, two lenses are each formed with a viewing portion and two connecting portions that do not encroach into the viewing portion. One of the connecting portions is a temple connecting portion and one of the connecting portions is a bridge connecting portion. A bridge connects that bridge connecting portions and a temple extends from each of the temple connecting portions such that a single pair of rimless eyewear can be defined. In some embodiments, no hardware, screws, nuts, compression mounts, wires or other parts are installed within the viewing portion of the lenses. More particularly, in some preferred embodiments, the connecting portions for these components extends outwardly from a peripheral surface that defines the viewing portion and the connecting portions do not encroach into the viewing portion by interrupting that peripheral surface. In some embodiments, the bridge and/or the temples can be connected without any mechanical members and can be connected by adhesive, press fit, or other suitable construction.
Although the present invention has been disclosed in the context of certain preferred embodiments, examples and variations, it will be understood by those skilled in the art that the present invention extends beyond the specifically disclosed embodiments to other alternative embodiments and/or uses of the invention and obvious modifications and equivalents thereof. In addition, while a number of variations of the invention have been shown and described in detail, other modifications, which are within the scope of this invention, will be readily apparent to those of skill in the art based upon this disclosure. It is specifically contemplated that various combinations or subcombinations of the specific features and aspects of the embodiments may be made and still fall within the scope of the invention. It should be understood that various features and aspects of the disclosed embodiments can be combined with or substituted for one another in order to form varying modes of the disclosed invention. Moreover, some variations that have been described with respect to one embodiment and not another embodiment can be used with such other embodiments. For instance, many of the embodiments feature reinforcing members. It is intended that the embodiments not featuring reinforcing members can use reinforcing members. Many other variations also have been described herein and cross-application is intended where physically possible. Moreover, it is anticipated that different assemblies can be used on the same eyewear or all assemblies can have a single construction. Thus, it is intended that the scope of the present invention herein disclosed should not be limited by the particular disclosed embodiments described above, but should be determined only by a fair reading of the claims that follow.
This application claims the priority benefit under 35 U.S.C. § 119(e) of U.S. Provisional Patent Application No. 60/939,973, filed May 24, 2007, which is incorporated by reference in its entirety.
Number | Date | Country | |
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60939973 | May 2007 | US |