Patent Publication Number: US-2010123870-A1

Title: Structure of a frame combination of eyeglasses

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a frame combination structure of eyeglasses, more particularly one, which allows dark glasses as well as sight-assisting lenses to be joined thereon; thus, not only can the eyeglasses protect the wearer&#39;s eyes from the sun&#39;s glare, they can assist the wearer&#39;s eyesight as well. 
     2. Brief Description of the Prior Art 
     Currently, the proportion of shortsighted people is much greater than that several decades ago. And, the number of children who have shortsightedness is rapidly increasing. People with nearsightedness or farsightedness usually have to wear glasses to assist their eyesight. And, many people, e.g. sportsmen, exercisers, factory workers, and motorcyclists, wear safety glasses/goggles or sport and leisure glasses to protect their eyes when they are engaged in certain activities. And, sunglasses are widely used to protect the eyes from the sun&#39;s glare. 
     Furthermore, those people who like pursue fashionable things wear novel glasses to match their clothing. Therefore, eyeglasses have become a kind of daily necessities. Therefore, the eyeglasses industry makes a large variety of novel and fancy eyeglasses to meet consumers&#39; different needs. 
     However, most of the currently existing sight-assisting lenses can&#39;t prevent the wearers&#39; eyes from being hurt or injured by strong sunlight. And, most of the currently existing dark glasses can&#39;t correct poor eyesight. Consequently, a nearsighted person will have a problem in wearing his/her eyeglasses if he has to go outdoors when the sunlight is very strong. 
     SUMMARY OF THE INVENTION 
     It is a main object of the present invention to provide a frame combination of eyeglasses to overcome the above problems; the frame combination is structured in such a manner that dark glasses and sight-assisting lenses can be held thereon at the same time; thus, not only can the eyeglasses protect the wearer&#39;s eyes from the sun&#39;s glare, they can assist the wearer&#39;s eyesight as well. 
     A frame combination of eyeglasses in accordance with an embodiment of the present invention includes a main frame, and a secondary frame next to a rear side of the main frame. The main frame is a half-rimmed one, and holds dark glasses thereon; the secondary frame is a completely-rimmed one, and holds eyesight-assisting lenses thereon. 
     The main frame has two middle joining recessed portions, and a joining piece on each of its lateral parts. The secondary frame has two middle joining plates on a front side, and a raised joining portion on each of its two ends. The secondary frame is joined on the main frame with the joining plates being embedded in the joining recessed portions, and with the raised joining portions being joined in the joining pieces of the main frame respectively. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The present invention will be better understood by referring to the accompanying drawings, wherein: 
         FIG. 1  is an exploded perspective view of the present invention, 
         FIG. 2  is a front view of the present invention, and 
         FIG. 3  is a side view of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Referring to  FIG. 1 , a preferred embodiment of a frame combination of eyeglasses of the present invention includes a main frame  1 , and a secondary frame  2 . 
     The main frame  1  is a half-rimmed one, and dark glasses and temples are joined on the main frame  1 . The main frame  1  includes a middle part  11 , and two lateral parts  13 . The middle part  11  includes two joining recessed portions  12 . Each of the lateral parts  13  of the main frame  1  has a joining piece  14  thereon. 
     The secondary frame  2  is a completely-rimmed one, and joined on the main frame  1 . And, lenses are joined on the secondary frame  2  to assist the eyesight of the wearer. The secondary frame  2  has two joining plates  21  on a front side thereof, which are provided for connection with the joining recessed portions  12  of the main frame  1 . The secondary frame  2  has raised joining portions  22  for connection with the joining pieces  14  of the main frame  1 . Furthermore, the secondary frame  2  has a protruding part  23  on a lower edge thereof. 
     In assembly, referring to  FIGS. 2 and 3 , the secondary frame  2  is positioned on a rear side of the main frame  1  such that the joining plates  21  are embedded in the joining recessed portions  12 , the raised joining portions  22  are joined in the joining pieces  14 , and the protruding part  23  of the secondary frame  1  is under the main frame  1 ; thus, the main frame  1  together with the protruding part  23  of the secondary frame  2  comprise a completely-rimmed frame. 
     The main frame  1  has dark glasses joined thereon to protect the wearer&#39;s eyes from the sun&#39;s glare, and the secondary frame  2  has lenses thereon to assist the wearer&#39;s eyesight. Therefore, the eyeglasses with the frame combination of the present invention can protect the wearer&#39;s eyes from the sun&#39;s glare, and can assist the wearer&#39;s eyesight as well. 
     From the above description, it can be seen that the present invention has the following advantages over the prior art: 
     1. The main frame of the eyeglasses has dark glasses thereon to protect the wearer&#39;s eyes from the sun&#39;s glare, and the secondary frame has lenses thereon to assist the wearer&#39;s eyesight. Therefore, not only can the eyeglasses of the present invention protect the wearer&#39;s eyes from the sun&#39;s glare, they can assist the wearer&#39;s eyesight as well. 
     2. When the main frame and the secondary frame are joined together, the half-rimmed main frame together with the protruding part of the secondary frame will comprise a completely-rimmed frame.