Abstract:
An improved earphone transfer coupling apparatus includes a transfer element and a clip element. After the transfer element is fastened to the clip element, the transfer element may be coupled with an earphone to allow the transfer coupling apparatus inserted in user&#39;s ear or clipped on user&#39;s ear auricle.

Description:
FIELD OF THE INVENTION  
         [0001]    The present invention relates to an improved earphone transfer coupling apparatus and particularly a transfer coupling apparatus that is insertable into a human ear and allows to clip on the ear.  
         BACKGROUND OF THE INVENTION  
         [0002]    Hand-free handsets have been widely used with mobile phones these days. They are especially useful and convenient for drivers to make phone calls without using hands to hold the mobile phones.  
           [0003]    When using the hand-free handset, the connector of the hand-free handset is linked to the mobile phone while the connector has one end attached to a conductive line linking to an earphone for inserting into the external auditory canal of an user&#39;s ear. When there is incoming call from the mobile phone, the mobile phone transmits incoming audio signals to the earphone, and user&#39;s speaking audio signals are received by the receiver attached to the conductive line for transmitting to the mobile phone for emission. Users thus may make conversation without holding the mobile phones.  
           [0004]    However the earphone tends to get loose and drop when an user&#39;s external auditory canal is too large relative to the earphone, or the earphone cannot be fully inserted into the external auditory canal when user&#39;s external auditory canal is too small relative to the earphone, in the later occasion, trying to insert the earphone into the external auditory canal by force will hurt user&#39;s ear.  
           [0005]    Some producers have developed a transfer coupling means  1   a  (as shown in FIG. 1) made of soft rubber to fix this problem. The transfer coupling means  1   a  has a coupling section  2   a  to engage with the earphone  3   a  and may be directly inserted into user&#39;s external auditory canal. As the transfer coupling means is made of soft rubber, it can be held into the external auditory canal securely without hurting user&#39;s ear. However, a specific transfer coupling means la must be made to match a specific earphone  3   a,  and one set of transfer coupling means usually cannot match different brands of hand-free earphone. As a result, users have to buy the transfer coupling means la with the hand-free earphones. It is not convenient.  
         SUMMARY OF THE INVENTION  
         [0006]    The primary object of the invention is resolve the foregoing disadvantages. The invention provides a transfer coupling apparatus that may be directly held in user&#39;s ear and allows to couple with different brands of hand-free earphone.  
           [0007]    Another object of the invention is to provide a transfer coupling apparatus adaptable to different inner shapes of ears to suit different users. Yet another object of the invention is to provide a transfer coupling apparatus of different sizes to suit different sizes of users&#39; ears.  
           [0008]    To attain aforesaid objects, the transfer coupling apparatus of the invention consists of a transfer element and a clip element. The transfer element includes a jutting section insertable into the ear and a coupling section. The jutting section has at least a first jutting section and a second jutting section with a through aperture formed in the second jutting section. The coupling section is hollow and communicates with the aperture. The clip element has a hook which has one end attached to a pivotal section to pivotally engage with a pivotal bore formed in the transfer element. After the transfer element and clip element is assembled, and the coupling section is engaged with the earphone, the transfer coupling apparatus may be inserted into user&#39;s ear and clipped on the auricle of the ear.  
           [0009]    The foregoing, as well as additional objects, features and advantages of the invention will be more readily apparent from the following detailed description, which proceeds with reference to the accompanying drawings. 
       
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0010]    [0010]FIG. 1 is a perspective view of a conventional earphone transfer coupling means.  
         [0011]    [0011]FIG. 2 is a perspective view of the invention.  
         [0012]    [0012]FIG. 3 is a front view of the invention according to FIG. 2.  
         [0013]    [0013]FIG. 4 is a cross section of the invention taken along line  4 - 4  of FIG. 3.  
         [0014]    [0014]FIG. 5 is a schematic view of the invention in use.  
         [0015]    [0015]FIG. 6 is a schematic view of another embodiment of the invention.  
         [0016]    [0016]FIG. 7 is a schematic view of yet another embodiment of the invention. 
     
    
     DESCRIPTION OF THE PREFERRED EMBODIMENTS  
       [0017]    Referring to FIGS. 2, 3 and  4 , the earphone transfer coupling apparatus of the invention consists of a transfer element  1  and a clip element  2  made of a soft rubber with the exterior contour conforming to ergonomics and is insertable into users&#39; ear when in use.  
         [0018]    The transfer element  1  has a jutting section  11  and a coupling section  12  located at one side of the jutting section  11 . The jutting section  11  further includes a first jutting section  111  and a second jutting section  112  of different shapes for inserting in the external auditory canal and scapha of an user&#39;s ear. The second jutting section  112  further has a through aperture  113  formed therein for audio signal output. The coupling section  12  is attached to another side of the jutting section  11  and is hollow and communicates with the aperture  113  of the second jutting section  112 . When the coupling section  12  is engaged to the earphone (not shown in the drawings), audio signals output from the earphone will be transmitted through the aperture  113  of the second jutting section  112 . The coupling section  12  has an audio filter  121  located therein to filter out ambient noises to allow audio signals outputting clearly through the aperture  113 . The coupling section  12  further has a sloped opening rim  122  such that when the coupling section  12  is engaged with the earphone, the receiver (not shown in the drawings) of the earphone may be tilted closely to user&#39;s cheek to receive user&#39;s speaking audio signal more effectively. The coupling section  12  further may have a lug  124  jutting outwards from the peripheral surface. The lug  124  has a pivotal bore  124  formed therein.  
         [0019]    The clip element  2  includes a hook  21  for clipping the apparatus on user&#39;s ear. The hook  21  has one end attached to a pivotal section  22  to engage with the pivotal bore  124 . The pivotal section  22  has a curvy retain section  23  to allow the pivotal section  22  engaging with the pivotal bore  124  securely without loosening off.  
         [0020]    Referring to FIG. 5, when in use, the earphone  3  is engaged with the coupling section  12 . The first and second jutting section  111 ,  112  may be disposed into external auditory canal and scapha of user&#39;s ear to allow the transfer element  1  held in the ear securely. The sloped opening rim  122  of the coupling section  12  allows the extension arm  31  of the earphone  3  positioning closely to user&#39;s cheek so that the receiver  32  of the earphone  3  can effectively capture user&#39;s speaking audio signals.  
         [0021]    In the event that the jutting section  11  of the transfer element  1  cannot be held securely in the ear, the transfer element  1  may be pivotally engaged with the clip element  2 . And the hook  21  may be turned to clip on the ear auricle to allow the transfer element  1  held securely in the ear.  
         [0022]    Referring to FIG. 6 for another embodiment of the invention which is largely similar to the embodiment previously discussed, however the jutting section  12  has a first jutting section  111 , a second jutting section  112  and a third jutting section  114  to suit different ear inner contours of different users, and offer users more selections.  
         [0023]    Referring to FIG. 7 for yet another embodiment of the invention which also is largely similar to the embodiment previously discussed, however the second jutting section  112  has an indented recess  115  formed on the peripheral surface surrounding the aperture  113  for converging and amplifying audio signals to user&#39;s ear to allow user getting clearer audio signals.  
         [0024]    Furthermore, the transfer coupling apparatus of the invention may be made in different sizes to suit different inner sizes of users&#39; ears. The hollow space of the coupling section  12  is adaptable to different hand-free earphones.  
         [0025]    In addition, the sloped opening rim  122  may have a notch to facilitate engagement with the coupling section or make adjustment of the earphone position easier.