Classifications

• • G—PHYSICS
  • G02—OPTICS
  • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
  • G02C1/00—Assemblies of lenses with bridges or browbars
  • G02C1/04—Bridge or browbar secured to or integral with partial rims, e.g. with partially-flexible rim for holding lens

Definitions

• the invention relates to an eyeglass frame with at least one nose piece and with earpieces and nose piece as well as with a frame part for each spectacle lens, each frame part having a middle part and elastically deflectable legs, which together with the middle part each have a U- shape and grasp with the help of on the front or. keep tabs on the back of the glasses.
• An eyeglass frame of the type mentioned is e.g. known from German patent application DE 39 o5 197 A 1.
• the aim is to design a spectacle frame in such a way that the spectacle lenses do not have to have any recesses, openings, grooves, facets or the like on their circumference and are inserted directly into the spectacle frame without special machining of the spectacle lens edge can be.
• DE-0S 39 o5 197 this goal is achieved in that the spectacle frame consists of at least two resilient, U-shaped temples that are identical in terms of coverage and arranged parallel to one another and that use bridges, for example in the region of the ends of their middle parts are connected to each other.
• This known spectacle frame is based on the use of two mutually parallel, U-shaped temples are relatively compact and heavy.
• the invention is therefore based on the problem of creating an eyeglass frame that fulfills the same criteria as the known eyeglass frame, but at the same time is less massive and thus more elegant as a result.
• the invention provides that the tabs used for holding are in each case the angled, free ends of legs which are arranged on the frame parts.
• an eyeglass frame which can be produced inexpensively and permits the use of eyeglass lenses which are variable in the glass thickness or have a variable glass thickness distribution as is customary in the case of glasses with an optical effect.
• the circumferential edge of the spectacle lenses can also be within large tolerances without this affecting the manufacture. In principle, even a layperson is able to insert the glasses into the glasses frame, since no specialist knowledge is required for this.
• the eyeglass frame is visually appealing and elegant, since the tabs provided for holding the eyeglass lenses can be designed as short and inconspicuous elements together with the legs serving as the wearer for them.
• the legs serving as carriers for the tabs are also resilient and extend parallel to the frame parts. As a result, a high level of user-friendliness is achieved on the one hand and it is also ensured that the Keep serviceable parts barely noticeable.
• Fig. + a side view of a modified holding element
• the frame 1 has at least one nose piece 2, frame parts 3 and for each lens 5 and 6 as well as in FIG. 1 only the dash pads 7 shown in broken lines and broken ears 8 shown.
• the frame parts 3 and 4- each consist of a middle part 9 and elastically deflectable legs 10, 11 which, together with the middle part 9, encompass the respective spectacle lens 5 or 6 in a U-shape and also reach behind their widest point.
• the frame parts 3 and, each consisting of a single layer, are in a form-fitting manner and with spring tension on the outside at the edges 12 and 13 of the spectacle lenses 5, 6.
• the spectacle lenses 5 and 6 are held on the one hand by the frame parts 3 and 4- which surround them in a U-shape from above and on the other hand with the aid of tabs 1-4 and 15 which are on the front 16 and on the back 17 of the respective spectacle lens 5 , 6 rest.
• the tabs 14- » 15 are the angled, free ends of legs 18, 19, which are arranged on the frame parts 3, 4-.
• the legs 18, 19 extend approximately parallel to the mounting parts 3, 4-, as can be seen both from the view according to FIG. 1 and from the top view according to FIG. 2.
• the legs 18, 19 serving as supports for the tabs 14, 15 consist of a fundamentally resilient material.
• the tabs 14, 15 lie loosely on the spectacle lenses 5, 6 only with pressure in the area of their respective contact points and thereby give the spectacle lenses 5, 6 a secure and firm hold in the respective frame part 3, 4--
• the legs 18, 19 serving as supports for the tabs 14, 15 are each parts of U-shaped holding elements 20.
• Each of these holding elements 2o consists of a web 21 and two legs 18, 19 with angled tabs 14-, 15 forming ends.
• the holding elements 20 are together with the legs 18, 19 in the plan view according to FIG. 2 or also in the view according to FIG. 3 approximately horseshoe-shaped and with their web 21 each fastened to the mounting parts 3, 4.
• the fastening takes place in the case of eyeglass frames made of metal or if the parts consist of die-cast or injection-molded by soldering or gluing. In principle, it is also possible to weld them, for example if titanium is used.
• three U-shaped holding elements 2o are provided for fixing each spectacle lens 5, 6 and give it a secure and firm hold.
• a holding element 2o is also in each case arranged at the free end 22 of the legs 10 and 11 of the socket parts 3 and 11, respectively.
• the webs 21 and the legs 18, 19 of the holding elements 2o embrace the free ends 22 of the legs 1o, 11 of the socket parts 3, 4 in a U-shape.
• the webs 21 and the legs 18, 19 of the holding elements 2o lie in planes perpendicular to the plane of the legs 1o, 11 of the mounting parts 3, 4--
• the third holding part 2o is located approximately in the middle of the central web 9 of the mounting parts 3, 4- if that Glasses frame 1 - as is the case with the exemplary embodiment shown in FIGS. 1 and 3 - has a bridge 23 parallel to the nose piece 2, this bridge 23 ends between the legs 18, 19 of the holding elements and at a distance from their web 21 (Fig. 2).
• the spectacle lenses 5, 6 have smooth edges 12, 13 (flat facets) and can be inserted into and removed from the spectacle frame 1 without any problems. For this purpose, no special machining of the edges 12, 13 of the spectacle lenses 5, 6 is required, and no special expertise is required for this.
• the spectacle glasses 5, 6 can finally also be removed from the spectacle frame 1 again. For this purpose, only the legs 10, 11 of the frame parts 3, 4, which resiliently rest against the edges 12, 13 of the spectacle lenses 5, 6, have to be spread out slightly.
• U-shaped holding elements 20 is expedient, but in no way mandatory.
• the legs 18, 19 with the tabs 14-, 15 can also be soldered, welded or glued directly to the frame parts 3, 4- with their ends facing away from the tabs 14-, 15.
• Such an embodiment also leads to a view according to FIG. 1. Also because of their length, they have the necessary spring elasticity in order to use the tabs 14-, 15 to exert the necessary holding pressure on the glasses 5, 6 as well as by to be able to deflect in the necessary manner when inserting and removing the spectacle lenses 5, 6.
• the materials used in the manufacture of glasses namely metals and plastics, are used. Special materials or novel alloys are not required.
• FIGS. 4 and 5 show a modified embodiment of a holding element 2 a, which has outer legs 18 a and 19 a and inner legs 24 a and 25 a, which are connected by a web 26 a.
• the outer legs 18a and 19a are also connected to the inner legs 24a and 25a with the aid of intermediate pieces 27a and 28a, so that all parts together result in a W-shaped holding element 2oa in plan view according to FIG. 5.
• the free ends of the outer legs 18a and 19a are in turn angled and serve as tabs 14-a and 15a, as is also the case with the holding element 2o.
• both the web 26a and the intermediate pieces 27a and 28a are preferably of slightly curved design and since two inner legs 24-a and 25a are additionally provided, the holding element 2oa has different spring properties than the holding element 2o. When using the same materials and when using the same cross sections, it is softer than the holding element 2o, this being achieved solely with the aid of constructive measures.
• the holding element 2oa can finally be modified even further, so that it is approximately E-shaped in plan view, the length of the outer legs 18a and 19a compared to the length of the inner legs and 25a can vary. Furthermore, all legs can be slightly curved. However, it is particularly advantageous if, as shown in FIG. 5, the outer legs 18a and 19a are longer than the inner legs 24.a and 25a.

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• Physics & Mathematics (AREA)
• Health & Medical Sciences (AREA)
• General Physics & Mathematics (AREA)
• Ophthalmology & Optometry (AREA)
• Optics & Photonics (AREA)
• Eyeglasses (AREA)

Applications Claiming Priority (4)

Publications (1)

Family

ID=25905248

Family Applications (1)

Country Status (2)

Citations (5)

Family Cites Families (4)

• 1991
  • 1991-07-27 DE DE19914124963 patent/DE4124963A1/de active Granted
• 1992
  • 1992-07-03 WO PCT/EP1992/001500 patent/WO1993001515A1/de unknown

Patent Citations (5)

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