Patent Publication Number: US-8117673-B2

Title: Swimming goggles

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to swimming goggles, and particularly to swimming goggles which are assembled by latching and pressing and which have large side field of vision. 
     2. Related Art 
     Swimming goggles have a variety of shapes and structures. In consideration of assembly of lenses, swimming goggles are generally of three types: integrating type, implanting type and pressing type. The integrating type of swimming goggles has lenses integrated with frames. The implanting type of swimming goggles has lenses implanted into and then integrated with frames. The pressing type of swimming goggles has lenses assembled on a mask-like pad and then assembled on and pressed to frames. The instant invention is involved in the pressing type of swimming goggles. A conventional pressing type of swimming goggles have frames with slits for facilitating assembly of lenses, and pressing members for pressing against to join the slits. However, the pressing members of the pressing type are adjacent to a user&#39;s cheekbones and hide from the view beside eyes. So the user&#39;s eyes can not reach side view except by rotating his/her head. This defect makes the conventional pressing type of swimming goggles not meet product requirement of some countries. 
     Moreover, because of different profiles of users&#39; heads, users have to pull two strips of a head strap to adjust the swimming goggles to appropriate positions. However, the adjusting positions of the head strap are adjacent to ends of eyes. Once pulling the head strap up and down, the frames are often pulled up and slantwise, making users feel uncomfortable. The frames are also not aligned with the eyes. 
     SUMMARY OF THE INVENTION 
     To overcome the shortcomings, an object of the present invention is to provide swimming goggles which touch users closely and are worn comfortably and which have large side field of vision. 
     The swimming goggles comprise two clamp frames, two frame bodies, two lenses respectively received in the receiving slots of the frame bodies, pressing devices for pressing the first arm and the second arm to close, and a head strap assembled on the engaging portions of the stems. The clamp frames are made of hard material. Each clamp frame defines a passageway, and has an assembling portion on an inward side thereof. A first arm and a second arm respectively extend from an outward side of the clamp frame and opposite to the assembling portion. A slit is defined between joint surfaces of the first arm and the second arm and is located adjacent a user&#39;s temple when being worn. A stem extends from an end of the first arm/the second arm and has appropriate length. An engaging portion is formed at an end of the stem. A connecting member connects the assembling portions of the clamp frames. The frame bodies are made of soft material, and are respectively assembled on the passageways of the clamp frames. Each frame body includes an outer surface and an inner surface. A receiving slot is defined in the inner surface. 
     The slits are neighboring a user&#39;s temples, broadening side area of the lenses. Side areas of lenses are enlarged, allowing a user&#39;s eyes to reach side vision. When the swimming goggles are worn, the stems are located at about a user&#39;s ears, retaining the frame bodies and the lenses. Therefore the head strap is pulled in balance, avoiding the frame bodies inclined. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is an exploded view of swimming goggles of the present invention. 
         FIGS. 2-4  illustrate the swimming goggles being assembled step by step. 
         FIG. 5  is a front view of the swimming goggles of  FIG. 4 . 
         FIG. 6  is a cross-sectional view taken along the line  6 - 6  in  FIG. 5 . 
     
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     With reference to  FIG. 1 , swimming goggles  1  in accordance with the present invention comprise two clamp frames  2 , a connecting member  3 , two frame bodies  4 , two lenses  5  and pressing devices  6 . Each clamp frame  2  is made of hard material, and includes a first ring  20  and a second ring  21  corresponding to each other. A plurality of ribs  22  are spaced the same distance from each other and are parallel to each other for connecting the first ring  20  and the second ring  21 . A passageway  23  is defined between the first ring  20  and the second ring  21  for receiving the frame body  4 . Each clamp frame  2  has an assembling portion  24  on an inward side thereof for connecting with the connecting member  3 . A first arm  281  and a second arm  282  respectively extend from an outward side of the clamp frame  2  and are opposite to the assembling portion  24 . The first arm  281  and the second arm  282  extend toward each other to form a tapered portion  28 . A slit  25  is defined between the joint surfaces of the first arm  281  and the second arm  282 . Preferably, the slits  25  are inclined upwardly. A stem  26  extends unitarily from an end of the second arm  282 , and has appropriate length. The stem  26  has a distal portion  261  located near a user&#39;s ear when the swimming goggles are worn. An engaging portion  27  is unitarily formed at an end of the stem  26 . In this embodiment, the engaging portion is a ring button. In another embodiment, the engaging portion  27  may be a ring button, a strap buckle, or an assembly of a ring button and a strap buckle. A head strap (not shown) is assembled on the engaging portions  27 . 
     The assembling portions  24  are assembled with the connecting member  3 . The connecting member  3  forms positioning posts  30  on both sides thereof. Each of the positioning posts  30  has a T-shaped cross section. The assembling portions  24  define embedding grooves  241  for rotating to latch with the positioning posts  30 . The embedding grooves  241  are grooves with cross-like section. When assembled, the T-shaped positioning posts  30  fit to the assembling portions  24 , and rotate 90 degrees to latch with the assembling portions  24 . 
     The frame bodies  4  are made of soft material, and are respectively assembled on the passageways  23  of the mesh-like clamp frames  2 . Each frame body  4  includes an outer surface  40  and an inner surface  41 . A receiving slot  42  is defined in the inner surface  41  for receiving the lenses  5 . A plurality of positioning grooves  43  are defined in the outer surface  41  for corresponding to the ribs  22  of the clamp frames  2 . Each frame body  4  defines a latch groove  44  for locking rims of the first ring  20  and the second ring  21 . A pad  45  extends unitarily from a side of the inner surface  41  for touching a user&#39;s face comfortably. 
     Each pressing device  6  comprises an embedding portion  60  and a latch portion  61  locking with each other. The embedding portion  60  extends unitarily from an end of the first arm  281  and then inclines towards the latch portion  61  to form a projection (not labeled). The latch portion  61  extends unitarily from an end of the second arm  282 , and defines a locking groove (not labeled) for corresponding to the projection. The embedding portion  60  and the latch portion  61  shift the joint surfaces between the first arm  281  and the second arm  282 . The slit  25  shifts to between the embedding portion  60  and the latch portion  61 . In assembly, the projection of the embedding portion  60  locks and is joined with the locking groove of the latch portion  61  so as to close the slit  25  and urging to urge the first arm  281  and the second arm  282  to be assembled together. It is noted that the slit  25  is located adjacent a user&#39;s temple, and therefore, the lenses  5  have enlarged side area with either side of the clamp frame  2  being enlarged. Consequently, a user can have enlarged side visual field. 
     The slit  25  is further pressed, and the first arm  281  and the second arm  282  are assembled fixedly. Each pressing device  6  further comprises a pressing member  62 , and positioning protuberances  63  and orifices  64  engaging with each other. The pressing member  62  is hollow and tapered, and extends around the stem  26  to gradually press against the first arm  281  and the second arm  282 , thereby further pressing the slit  25  to close. The positioning protuberances  63  are formed on sides of the first arm  281  and the second arm  282 , respectively. The orifices  64  are formed on the pressing member  62 . When assembled, the positioning protuberances  63  and the orifices  64  engage with each other. The pressing member  62  is assembled on the first arm  281  and the second arm  282 , and reinforces assembly of the first arm  281  and the second arm  282 . 
     In assembly, the lenses  5  are respectively received in the receiving slots  42  of the frame bodies  4 . The frame bodies  4  are respectively assembled on the passageways  23  of the clamp frames  2 . During assembly, the ribs  22  of the clamp frames  2  slide into the positioning grooves  43  since the outer surfaces  40  of the frame bodies  4  are arcuate. The first ring  20  and the second ring  21  are embedded into the latch groove  44  of the frame bodies  4 . The frame bodies  4  and the lenses  5  are assembled onto the clamp frames  2 . As shown in  FIGS. 2 and 3 , the pressing devices  6  extend around the stems  26 , and press against the tapered portions  28  to urge the slits  25  to close. The positioning protuberances  63  and the orifices  64  engage with each other for assembling the pressing members  60  onto the tapered portions  28 , thereby reliably pressing the slits  25  to close.  FIG. 4  shows the swimming goggles of the present invention being assembled completely. 
     Further referring to  FIGS. 5 and 6 , in assembly, the frame bodies  4  and the lenses  5  are effectively clamped and pressed by the clamp frames  2 , the embedding portions  60 , the latch portions  61 , the pressing members  60 , the positioning protuberances  63  and the orifices  64 . When the swimming goggles are worn, the stems  26  are located at about a user&#39;s ears, like brackets of lenses, retaining the frame bodies  4  and the lenses  5  in the front. Two strips of a head strap (not labeled) are pulled in balance, avoiding the frame bodies  4  inclined. The slits  25  are neighboring a user&#39;s temples, broadening side area of the lenses  5 . Side areas of lenses are enlarged, allowing a user&#39;s eyes to reach side vision. 
     It is understood that the invention may be embodied in other forms without departing from the spirit thereof. Thus, the present examples and embodiments are to be considered in all respects as illustrative and not restrictive, and the invention is not to be limited to the details given herein.