Patent Publication Number: US-2021191148-A1

Title: Eyewear attachment and eyewear assembly

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application claims priority to Taiwanese Patent Application No. 108147200, filed on Dec. 23, 2019. 
     FIELD 
     The disclosure relates to eyewear assembly, more particularly to an eyewear assembly including a detachable eyewear attachment. 
     BACKGROUND 
     For people who wear glasses, it is annoying that their glasses tend to slip down when their bodies are moving fiercely and sweating during exercise. 
     Referring to  FIG. 1 , a pair of conventional eyewear attachment is shown to include an inner frame  2  for confining a lens unit  11  of a pair of glasses  1 , and a band  3  attached to two temples  12  of the glasses  1  by two clips  31 . The glasses  1  are worn on the head of a user by the band  3  in a relatively loose manner. However, since the inner frame  2 , the band  3  and the clips  31  are separate elements, it is troublesome to carry and assemble these elements together. 
     SUMMARY 
     Therefore, an object of the present disclosure is to provide an eyewear attachment and an eyewear assembly capable of alleviating at least the drawback of the prior art. 
     According to one aspect of the disclosure, an eyewear attachment adapted to be mounted on a lens unit is provided. The lens unit includes a lens member having an inner surface and an outer surface opposite to the inner surface. The eyewear attachment includes a frame unit, at least one engaging unit, two connecting units and an elongated wearing unit. The engaging unit extends from the frame unit toward the lens unit and includes two positioning members that extend respectively from upper and lower sides of the frame unit and that are adapted to detachably engage the lens member in such a manner that the frame unit is affixed on the lens unit. The connecting units are respectively and integrally connected to two lateral sides of the frame unit. The wearing unit interconnects the connecting units so as to allow an assembly of the frame unit, the connecting units and the wearing unit to be sleeved on the head of a user. 
     According to another aspect of the disclosure, an eyewear assembly is provided. The eyewear assembly includes a lens unit and an eyewear attachment. The lens unit includes a lens member that has an inner surface and an outer surface opposite to the inner surface. The eyewear attachment is mounted on the lens unit, and includes a lens member having an inner surface and an outer surface opposite to the inner surface. The eyewear attachment includes a frame unit, at least one engaging unit, two connecting units and an elongated wearing unit. The engaging unit extends from the frame unit toward the lens unit and includes two positioning members that extend respectively from upper and lower sides of the frame unit and that detachably engage the lens member in such a manner that the frame unit is affixed on the lens unit. The connecting units are respectively and integrally connected to two lateral sides of the frame unit. The wearing unit interconnects the connecting units so as to allow an assembly of the frame unit, the connecting units and the wearing unit to be sleeved on the head of a user. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Other features and advantages of the disclosure will become apparent in the following detailed description of the embodiments with reference to the accompanying drawings, of which: 
         FIG. 1  is a perspective view of a pair of eyeglasses and a conventional band provided with two clips for retaining the eyeglasses thereon; 
         FIG. 2  is a partly exploded perspective view of a first embodiment according to an eyewear assembly of the present disclosure, illustrating the eyewear assembly including a lens unit and an eyewear attachment; 
         FIG. 3  is an assembled schematic top view of the first embodiment being sleeved on the head of a user, illustrating the eyewear attachment mounted on the lens unit; 
         FIG. 4  is a schematic side view of the first embodiment being sleeved on the head of a user; 
         FIG. 5  is a partly exploded perspective view of a second embodiment according to the eyewear assembly of the present disclosure; 
         FIG. 6  is an assembled perspective view of the second embodiment, illustrating the eyewear attachment mounted on the lens unit; 
         FIG. 7  is a partly exploded perspective view of a third embodiment according to the eyewear assembly of the present disclosure; and 
         FIG. 8  is an assembled perspective view of the third embodiment. 
     
    
    
     DETAILED DESCRIPTION 
     Before the present disclosure is described in greater detail, it should be noted herein that like elements are denoted by the same reference numerals throughout the disclosure. 
     Referring to  FIGS. 2 to 4 , an eyewear assembly according to the first embodiment of the present disclosure is suitable to be worn by a user as sports goggles, and includes a lens unit  4  and an eyewear attachment  9 . The eyewear attachment  9  is mounted on the lens unit  4 , and includes a frame unit  5 , at least one engaging unit  6 , two connecting units  7  and an elongate wearing unit  8 . 
     The lens unit.  4  includes a lens member  41  having an inner surface  411  and an outer surface  412  opposite to the inner surface  411  and two temple members  42  extending rearwardly from two lateral sides of the lens member  41 . The lens member  41  is formed with a plurality of slots  413  extending through the inner and outer surfaces  411 ,  412 . 
     The frame unit  5  includes a nose bridge pad  51  having an inverted-V shape, two lower frame members  52  respectively extending from two ends of the nose bridge pad  51  and respectively connected to the connecting units  7 , and an upper frame member  53  disposed above the lower frame members  52  and interconnecting the connecting units  7 . The nose bridge pad  51 , the lower frame members  52  and the upper frame member  53  cooperate with one another to define a lens receiving space  54  confining the lens member  41  therein. The material for making the frame unit  5  can be one of plastic, silica gel, rubber and a combination thereof and the present disclosure is not limited to the material for making the frame unit  5 . 
     The engaging unit  6  extends from the frame unit  5  toward the lens unit  4 , and includes two positioning members  61  that extend respectively from upper and lower sides of the frame unit  5  and that detachably engage the slots  413  of the lens member  41 . In this embodiment, the eyewear attachment  9  includes two engaging units  6  that are symmetrically disposed relative to the nose bridge pad  51 . For the purpose of illustration, the upper ones of the positioning members  61  of the engaging units  6  are denoted by  61 A and the lower ones of the positioning members  61  are denoted by  61 B in the following description. The positioning members  61 B extending respectively from the lower frame members  52  of the frame unit  5  are inclined forwardly and upwardly, and engage respectively the slots  413  formed in a lower portion of the lens member  41 . The positioning members  61 A extending from the upper frame member  53  of the frame unit  5  are inclined forwardly and downwardly, and engage respectively the slots  413  formed in an upper portion of the lens member  41 , so that the frame unit  5  is affixed on the lens unit  4  by the engaging units  6 . With the positioning members  61 A,  61 B extending inclinedly the lens member  41  is positioned relative to the frame unit  5 . It should be noted that the configurations of the positioning members  61 A,  61 B are not limited to the example described herein and may be varied in other embodiments as long as the positioning members  61  are capable of engaging the lens member  41  for affixing the lens unit  4  to the frame unit  5 . 
     The connecting units  7  are respectively and integrally connected to two lateral sides of the frame unit  5 . Each of the connecting units  7  defines a temple passage opening  71  engaging a respective one of the temple members  42  so that lateral movement of the lens unit  4  relative to the connecting units  7  is prevented. 
     The wearing unit  8  interconnects the connecting units  7  so as to allow an assembly of the frame unit  5 , the connecting units  7  and the wearing unit  8  to be sleeved on the head of a user. Note that the wearing unit  8  is one of an elastic band and a length adjustable strap with a buckle that can be adjusted to fit different sizes of the heads of different users. In this embodiment, the wearing unit  8  is connected to the frame unit  5  by the connecting units  7 , so that assembly of the wearing unit  8  to the frame unit  5  is not required. 
     Before the lens unit  4  is attached to the eyewear attachment  9 , an assembly of the frame unit  5  and the wearing unit  8  is sleeved on the head of the user. Then, the temples  42  of the lens unit  4  are brought to extend through the temple passage openings  71  of the connecting units  7 , respectively. Subsequently, the positioning members  61 A,  61 B are snapped into the slots  314  so as to affix the lens unit  4  on the frame unit  5 , and thus the eyewear assembly can be served as goggles, sports goggles, etc. In this way, the lens unit  1  is confined in the lens receiving space  54  by the engaging units  6 , the connecting units  7  provide lateral engaging force to the temple members  42 , and the wearing unit  8  provides positioning force in the front-rear direction. 
     To take off the eyewear assembly, the wearing unit  8  is pulled away from the head of the user and then the eyewear assembly can be worn around the neck of the user. When it is not required to enhance the connection strength between the lens unit  4  and the head of the user, the wearing unit  8  is first pulled away from the head of the user and then the lens unit  4  is detached from the frame unit  5  so that the lens unit  4  can be worn directly on the head of the user as a pair of glasses. Additionally, the eyewear attachment  9  can be worn around the neck of the user or be folded and stored. As compared to the conventional band  3  including two clips  31  shown in  FIG. 1 , no additional assembly and disassembly for the eyewear attachment  9  of the present disclosure is required. It should be noted that the relationship between the head of the user and the eyewear assembly shown in  FIGS. 3 and 4  is merely for illustration and may be varied since the sizes of heads of different users are not identical. 
     Referring to  FIGS. 5 and 6 , a second embodiment of the eyewear assembly according to the present disclosure is shown. The second embodiment is similar to the first embodiment and the differences therebetween are described in the following. In the second embodiment, the lens unit  4  is a pair of rimless glasses and the slots  413  formed in the lens member  41  shown in  FIGS. 2 to 4  are omitted. The positioning members  61 A,  61 B of the engaging units  6  respectively abut against upper and lower portions of the lens member  41 , so that engaging forces are generated thereamong in the front-to-rear direction. 
     In this embodiment, the engaging units  6  further include two inclined auxiliary members  62  extending forwardly, upwardly and outwardly from the two ends of the nose bridge pad  51 , respectively, and abutting against the outer surface  412  of the lens member  41 . By virtue of the auxiliary members  62 , positioning force in the front-rear direction can be generated so that movement of the lens member  41  relative to the frame unit  5  in the front-rear direction can be prevented. In addition, an airflow from the ambient surrounding that may render the user uncomfortable can be blocked by the auxiliary members  62 . 
     In the second embodiment, the upper frame member  53  of the frame unit  5  has an upper frame body  530  abutting against the outer surface  412  of the lens member  41  and at least one upper inclined toothed structure  531  extending from the upper frame body  530  and abutting against the inner surface  411  of the lens member  41 . The lower frame members  52  of the frame unit  5  has a lower frame body  520  abutting against the outer surface  412  and at least one lower toothed structure  521  extending from the lower frame body  520  and abutting against the inner surface  411  of the lens member  41 . The lower and upper frame bodies  520 ,  530  and the lower and upper toothed structures  521 ,  531  cooperate with one another to generate positioning force in the front-rear direction, so as to prevent removal of the lens member  41  from the frame unit  5 . 
     Referring to  FIGS. 7 and 8 , a third embodiment of the eyewear assembly according to the present disclosure is shown. The third embodiment is similar to the second embodiment and the differences therebetween are described in the following. In the third embodiment, the lens unit  4  is also a pair of rimless glasses without the temple members  42  shown in  FIGS. 1 to 6 , and the slots  413  are formed only in the upper portion of lens member  41 . Specifically, the positioning members  61 A engage the slots  413  so that engaging forces are generated between the lens member and the engaging units  6  in the front-to-rear direction. The positioning members  61 B abut against the lower portion of the lens member  41 . Similar to the second embodiment, the structures of the auxiliary members  62  and the upper and lower inclined toothed structure  531 ,  521  engaging the lens member  41  generate positioning forces in the front-rear direction to prevent removal of the lens member  41  from the frame unit  5 . 
     To sum up, by virtue of the positioning members  61 A,  61 B of the engaging unit  6  extending inclinedly, the lens unit  4  can be positioned relative to the frame unit  5 . Further, the structure of the connecting units  7  integrally connected to two lateral sides of the frame unit  5  provides lateral engaging forces to position the lens unit  4 , and the wearing unit  8  provides positioning force in the front-rear direction, thereby stabilizing the connection between the lens unit  4  and the frame unit  5 . In this way, the present disclosure provides an eyewear assembly that is relatively simple to assemble and convenient to be carried by the user. 
     In the description above, for the purposes of explanation, numerous specific details have been set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one skilled in the art, that one or more other embodiments may be practiced without some of these specific details. It should also be appreciated that reference throughout this specification to “one embodiment,” “an embodiment,” an embodiment with an indication of an ordinal number and so forth means that a particular feature, structure, or characteristic may be included in the practice of the disclosure. It should be further appreciated that in the description, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of various inventive aspects. 
     While the disclosure has been described in connection with what are considered the exemplary embodiments, it is understood that this disclosure is not limited to the disclosed embodiments but is intended to cover various arrangements included within the spirit and scope of the broadest interpretation so as to encompass all such modifications and equivalent arrangements.