Patent Publication Number: US-2017351121-A1

Title: Glasses frame structure

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a glasses frame structure and, more particularly, to a glasses frame structure that can be fitted with side lenses more easily and firmly. 
     2. Description of the Prior Art 
     Generally, glasses can be classified into two categories: medical corrective glasses and eye protection glasses, according to their functions. Eye protection glasses can be used for protecting human eyes from ultraviolet or intense light due to snow, foreign matter due to chemical sputtering, lathe cutting, milling or drilling, glare of computer display, X-ray, laser, intense light due to welding, dust, or pollen. Also, eye protection glasses can be used for the military use or town violence. With the improvement of quality of life, the increase in outdoor sports, and the popularization of eye medical and protection knowledge, there are various glasses products coming in the market, such as military glasses, sport safety glasses, working protective glasses, chemical protective mask, and motorcycle goggles. People increasingly demand the quality of the glasses products. 
     In conventional safety glasses, for protecting the eyes of engineering staff, athletes or workers, the glass frames are provided with side structures or shields. The protection level of the safety glasses, which can be determined by using an air gun to strike the lenses of the safety glasses at a specified velocity and a specified pressure several times, is generally divided into low standard (such as the standard required in Japan, wherein the lens to be tested should not fall from the associated frame by a gun fired at a velocity between 90 and 110 miles per hour), intermediate standard (such as the standard required in European countries, wherein the lens to be tested should not fall from the associated frame by a gun fired at a velocity of 120 miles per hour), and high standard (such as the standard required in US, wherein the lens to be tested should not fall from the associated frame by a gun fired at a velocity between 160 and 165 miles per hour). In conventional safety glasses, for increasing the capability of a glasses frame resisting an impact and increasing the safety level of the glasses frame, the side structures or shields thereof are required to be widen and thickened. In one example of conventional safety glasses, as disclosed in Publication Number 255500 and 255733 of Taiwan Patent, the chassis is curved backwardly to provide lateral protection for eyes. In another example of conventional safety glasses, as disclosed in Publication Number 385014 of Taiwan Patent, the chassis defines a V-shaped groove for holding the lenses, wherein the groove is unequal in its two sides, and one side of the groove is provided with one stop edge to increase the safety level of the glasses frame. A further example of the conventional safety glasses, as disclosed in Publication Number D127510 of Taiwan Patent, shows that the chassis defines side rims that can be fitted with side lenses. The conventional safety glasses hold the side lenses only via the side rims. There is still room for improving the conventional safety glasses. A further example of the conventional safety glasses, as disclosed in D138775, shows that the chassis defines slots for mounting the associated lenses. 
     The applicant has engaged in the processing and manufacturing of glasses for many years. After years of effort and repeated tests to overcome the shortcomings of conventional glasses frames, an enhanced glasses frame is thus invented and disclosed herein. 
     SUMMARY OF THE INVENTION 
     One object of the present invention is to provide an enhanced safety glasses frame, wherein the chassis thereof has a pair of side rims to each receive a first side lens, and each of the temples thereof has a rimmed portion to receive a second side lens. One advantage of the present invention is that the glasses frame can be made in a variety of styles while the side lenses can be made in a standard size to facilitate installation of the side lenses. With the present invention, the side lenses can be fixed more easily and firmly, the safety level of the glasses frame can be increased, and the cost of the glasses frame can be reduced. 
     Other objects, advantages, and novel features of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  shows an exploded view of a glasses frame structure according to one embodiment of the present invention. 
         FIG. 2  shows a side view of the glasses frame structure. 
         FIG. 3  shows a top view of the glasses frame structure. 
         FIG. 4  shows a rear view of the chassis of the glasses frame structure. 
         FIG. 5  shows a front view of the temples of the glasses frame structure. 
         FIG. 6  shows a schematic application view of the glasses frame structure, wherein two side lenses can be fitted into the chassis and one of the temples respectively. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     The following paragraphs will illustrate one embodiment of the present invention in detail to allow the technical contents, features and advantages of the present invention to be understood more easily. 
     Referring first to  FIGS. 1, 2, 3 and 6 , a glasses frame structure according to one embodiment of the present invention is shown, which generally comprises a chassis  101 , a pair of temples including a right temple  102  and a left temple  103 , a pair of hinges each including a first part  105 , a second part  104 , and a pivot pin  106  that connects the first and second parts  105 ,  104 , and a plurality of fasteners  107 , such as screws. One feature of the present invention is that, in addition to a pair of front rims for normal lenses, the chassis  101  has a pair of side rims  108 ,  110  respectively next to the front rims, and each side rim is extended at an angle to the corresponding front rim. Each of the side rims  108 ,  110  of the chassis  101  defines a space for receiving a first side lens, which is preferably standardized in size. Also, each of the rimmed portions  109 ,  111  of the temples  102 ,  103 , which is adjacent to one of the side rimes, defines a space for receiving a second side lens, which is preferably standardized in size. In particular, each of the side rims  108 ,  110  defines a slot  108   a ,  110   a  (see  FIG. 4 ), through which a first side lens can be fitted into the corresponding space; each of the rimmed portions  109 ,  111  defines a slot  109   a ,  111   a  (see  FIG. 5 ), through which a second side lens can be fitted into the corresponding space. As shown in  FIGS. 1 and 6 , after a first side lens  604  has been fitted into the space  110   b  of the left side rim  110  of the chassis  101 , both the first part  105  of a hinge and the first side lens  604  can be fixed to the chassis  110  by a plurality of fasteners  107 . Similarly, after a second side lens  609  has been fitted into the space  111   b  of the rimmed portion  110  of the left temple  103 , both the second part  104  of the hinge and the second side lens  609  can be fixed to the left temple  103  by a plurality of fasteners  107 . The pivot pin  106  connects the first part  105  and the second part  104  pivotally. Thus, the hinges can be used to pivotally connect the temples  102 ,  103  to the chassis  101 . It is not necessarily that the side rims  108 ,  110  of the chassis should coexist with the rimmed portions  109 ,  111  of the temples. In one embodiment, the side rims  108 ,  110  of the chassis or the rimmed portions  109 ,  111  of the temples can be dispensed with. Another feature of the present invention is that one hinge and one side lens can be fixed to the chassis or one temple by same fasteners to reduce the components required for the glasses frame and to increase the safety level of the glasses frame structure. 
       FIG. 4  shows a rear view of the chassis  101 . As shown, the slots  108   a ,  110   a  of the side rims are rectangular. However, the slots  108   a ,  110   a  can be configured to be curved to conform with a curved side lens.  FIG. 5  shows a front view of the temples  102 ,  103 . As shown, the slots  109   a ,  111   a  of the rimmed portions of the temples  102 ,  103  are rectangular. However, the slot  109   a ,  111   a  can be configured to be curved to conform with a curved side lens.  FIG. 6  shows a schematic application view of the glasses frame structure, wherein the left side rim  110  defines a space  110   b  for receiving a first side lens  604 . The first side lens  604  can be fitted into the space  110   b  through the slot  110   a  (see  FIG. 4 ), and the second side lens  609  can be fitted into the space  111   b  through the slot  111   a  (see  FIG. 5 ). Thereafter, a plurality of fasteners  107  can be used to firmly fix both the first part  105  of one hinge and the first side lens  604  to the chassis  101 , and to firmly fix both the second part  104  of the hinge and the second side lens  609  to the temple  103 . The glasses frame structure of the present invention allows side lenses to be fixed more easily and firmly with fewer fasteners, and the cost of the glasses frame can be reduced. 
     While the invention has been described with reference to the preferred embodiment above, it should be recognized that the preferred embodiment is given for the purpose of illustration only and is not intended to limit the scope of the present invention and that various modifications and changes, which will be apparent to those skilled in the relevant art, may be made without departing from the spirit and scope of the invention.