Abstract:
High retention coaxial connector, including a connector incorporating a first slotted sleeve and a first contact spring, and a coupling having a second slotted sleeve and a second contact spring. The mounting of the connector with the coupling will comprises both the first contact spring and the second contact spring to clamp against the central conductor and the aluminum shield of the coaxial cable.

Description:
BACKGROUND OF THE INVENTION 
     (1) Field of the Invention 
     This invention provides a high retention coaxial connector, characterized in that when the connector and the coupling are locked in a final lockup position, the compression of a slotted sleeve and slotted spring results in electromechanical integration by the clamping force created by the spring in the slotted sleeve against the aluminum shield and the central conductor of the coaxiable cable. 
     (2) Description of the Prior Art 
     In common cable TV systems, wireless TV systems and Collective Antenna TV system it is common practice to run a matter trunk line to the distributor, wherefrom sub-trunk lines feed to user&#39;s terminals, so that at these terminals signals transmitted by the TV emission systems are received. It is at the tail ends of coaxial cables that the trunk line is coupled to a cable connector, and in that manner, assembled to the distributor. FIG. 1A illustrates a coaxial connector that is currently in use nowadays. The purpose of the coaxial connector in the main is to secure optimum coupling between the coaxial shield and the connector body, which is prerequisite to the transmission of electric signals. The coaxial connector  100  comprises a connector body  101 , a first coupling sleeve  102 , screwed onto one end of the body  101 , and a second coupling sleeve  103 , screwed unto one end of this first coupling sleeve  102 . The connector body  101  comprises an annular collar  104 , a damper  105  coaxially assembled within the collar  104 , as well as moisture-sealing gasket  106  installed between the internal surface of the body  101  and the terminal end of the collar  104 . A harness  107  is coaxially installed inside the second coupling sleeve  103 , and a contact  108  is coaxially installed inside the harness  107 . A wedge  116  is abutted upon the damper  105 . 
     As shown in FIG. 1B, the damper  105  is executed to be an annular member  110 , with both sides having several protrusion detents  111 , which engages bulging wall  119  on the collar  104 , thereby confining the damper  105  in the collar  104 . Referring to FIG. 1C, it will be appreciated that coaxially installed into the second sleeve  103  is a contact  108  of which one end, the contact end  112 , may be coupled with the distributor to consummate electric connection, whereas another end, being the clamp end  113 , is endowed with inner threads  114  in addition to a plurality of grooves  115 . 
     Structured accordingly, what must be done in the first place as the coaxial connector  100  and the cable  200  are to be assembled together, is to have the loose end of the cable stripped so that outer coating  118  is left naked clear of both the aluminum shield and the core leader  117 . Next, insert the cable  200  thus prepared into the body  101  of the connector, thirdly, combine the body  101  with the first coupling sleeving  102  by intertwining each other, causing the damper  105  by its interiority to tightly wrap the aluminum shield  116 . Fourthly, the body  101  of the connector into which cable  200  has been established is screwed with the second sleeve  102  culminating in having the core leader  117  of the cable inserted into the inner threads  114  of the contact  108 . Structured accordingly, the core leader  117  is compelled to wind up secured by the contact  108 , and electric connection is consummated. 
     The foregoing assembly is awkward and cumbersome which invariably lowers or restricts working efficiency on the part of the working staff. Moreover, with the interior part of the damper  105  tightly wrapping up the external part of the aluminum shield  116 , in a rigid to rigid encounter, weathering effects or other causes, such as, for example: heat expansion and cold shrinkage, due to climatological change, wind blown vibration, fatigue or material rigidity, can often bring the damper  105  to aluminum shield  116  clamping to lose force, and that eventually will frustrate the good bond between the coaxial shield and the connector body, causing impaired performance of transmission of electric signals, all the more so in dealing with digital transmission services. To prevent that possibility, working technicians on duty will have to clamp tight the connector body  101  against the first coupling sleeve  102  again each year, and then that simply resulting in additional cost expense, and time spent, for that reason it deserves deliberation for other solutions. 
     In view of the above discussions, the inventor, verily a professional having been engaged in the art for years, had spent time and labor, energy in working for improvement, and has finally brought up this invention, high retention coaxial connector. 
     SUMMARY OF THE INVENTION 
     Accordingly, the primary object of the invention is to provide a high retention coaxial connector, with the body of the connector equipped with a first contact spring which will compel the aluminum shield of the cable into electromechanical bonding to thereby assure reliable electric connections. 
     A further object of the invention is to provide a high retention coaxial connector, in which the body of the connector is internally mounted with a second contact spring which will compel the core leader of the cable that is being worked with into electromechanical integration so as to assure reliable electric conduction. 
     Referring first of all to FIG. 2, a panoramic view of the longitudinal section of the high retention coaxial connector  1  structured according to the invention, it will be seen that the coaxial connector  1  comprises the connector body  10  and a coupling  20 . Referring to FIG. 3, it will seen that said connector body  10  of the connector is composed of a body  11  with a container hole  12  therein, the container hole  12  further contains a threaded bore  13  which is coaxial with an annular member  30 , an annular sleeve  40 , an annular collar  50 , and a moisture-sealing gasket  14 . 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     Technical measures employed to serve the above mentioned purposes and characteristic features are to be demonstrated by way of examples covered hereinafter with reference to the accompanying drawings in which: 
     FIG. 1A is a section view of a prior art coaxial cable connector. 
     FIG. 1B is a three-dimensional perspective of a prior art clamper. 
     FIG. 1C is a three-dimensional perspective of a prior art contact. 
     FIG. 2 is a section view of the invention coaxial connector. 
     FIG. 3 is a section view of the body of the connector structured according to the invention; 
     FIG. 3A is a section view of what is pursuant to the line segment  3 A— 3 A as given in FIG.  3 . 
     FIG. 4 is a section view of the column part of the invention. 
     FIG. 5 is a section view of the pipe element of the invention; 
     FIG. 6A is a section of the toggle of the invention; 
     FIG. 6B is a three-dimensional perspective of the contact spring of the invention. 
     FIG. 7 is an illustration of the invention seen from the body of the connector, the body of the coupling means, the cable lockup through approximation to the final position. 
     FIG. 8 is a section view of that segment from the lock up through the final position pursuant to FIG.  7 . 
     FIG. 8A is a section view of the segment  8 A— 8 A taken from FIG.  8 . 
     FIG. 9 is a section view of the body of the coupling means of the invention 
     FIG. 10 is a section view of the first insulator pursuant to the invention; 
     FIG. 11 is a section view of the second insulator pursuant to the invention. 
     FIG. 12 is a section view of the contact element of the invention. 
     FIG. 13A is a section view of the annular collar of the invention. 
     FIG. 13B is a section view of the contact spring of the invention. 
     FIG. 14 is a section view of the coaxial connector of the invention. 
     FIG. 15A is an illustration of the invention in going from the body of the connector, the body of the coupling means, and the cable locked up to approximate the final position; and 
     FIG. 15B is a section view of consummation of lockup to the final position pursuant to the illustration of FIG.  15 A. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Referring first of all to FIG. 2, a panoramic view of the longitudinal section of the high retention coaxial connector  1  structured according to the invention, it will be seen that the coaxial connector  1  comprises the connector body  10  and a coupling  20 . Referring to FIG. 3, it will seen that said conncetor body  10  of the connector is composed of a body  11  with a container hole  12  therein, the container hole  12  further contains a threaded bore  13  which is coaxial with an annular memeber  30 , an annular sleeve  40 , an annular collar  50 , and a moisture-sealing gasket  14 . 
     Represented by the section view of FIG. 4 is an example of the annular member  30  which is preferably made from metals, and is penetrated by hole  31  whose dia. just accommodates the insulator  62  for the coaxial cable  60 , as would be better appreciated by referring to FIG.  8 . The annular member  30  has a flange  32  and a pipe section  33 . The flange  32  is configured with an annular shoulder  34  and an annular rim  35  which is tapered at  36  within. 
     Represented in the cross section view of FIG. 5 is an example of the annular sleeve  40 , which is preferably made from metals complete with a hole  41  whose end forms a conic section  42 . On the end outside of the annular sleeve  40  there is formed an annular shoulder  43  which is spaced apart from the interior of the body  11  by a gap  15 . 
     As shown in FIG. 3, FIG. 3A, the annular collar  50  is mounted between the annular member  30  and the sleeve  40 , and incorporates a slotted sleeve  51  and a first contact spring  52 . Represented in the three-dimensional view of FIG. 6A is an example of the slotted sleeve  51  which incorporates a hole  53  whose dia. is such that it will just accommodate the contact spring  52 . On the slotted sleeve  51  is formed a slot  53  to allow for flexibility deformation of the slotted sleeve  51 . As shown in FIG. 6B, the first contact spring  52  is made from metal base such as, for example, resilient steel, structured by a series of annular rings, and on said first contact spring  52  is formed a slot  55  so as to exhibit a flexible retention force. The first contact spring  52  has an inner dia. sized to accommodate the aluminum shield  63  of the cable (reference called to FIG.  8 ). 
     In both FIG. 7, FIG. 8 are represented altogether an example of the high retention coaxial connector  1  in combination with a coaxial cable  60 . The cable  60  consists of a central conductor  61 , insulator  62 , aluminum shield  63  and a hard coating  64 . As a first step, prepare the free end of the coaxial cable  60 , next, slide the connector as a whole  10  onto the cable  60 . As a third step lock up the connector body  10  with the coupling  20  such that as both of them are approach the final positions, the coupling  20  will compel the annular member  30 , the sleeve  40 , and the annular collar  50  in the connector body  10  to move toward the other end, as would be better appreciated by referring to FIG.  7 . By then the sleeve  40  will fill up the gap  15 . 
     When both the connector body  10  and the coupling  20  are established in the final lockup position, the very fact that the moisture-hermetic gasket  14 , duly compressed by the pipe element  40 , will form a moisture-hermetic seal (see FIG.  8 ), while the annular collar  50 , duly compressed by the annular member  30  in conjunction with the sleeve  40 , will bring about a radial contraction of the slotted sleeve  51 , the same radial contraction will subject the first contact spring  52  into a tight clamping, albeit flexible, of the aluminum shield  63  of the coaxial cable  60 , to assure prolonged and reliable electric conduction or connection (see FIG.  8 ). As the final step, the central conductor  61  of the coaxial cable  60  is inserted into the contact of the coupling  20 , to consummate transmission of electric signals. 
     Represented in the section view of FIG. 9 is an example of a coupling  70  which comprises: coupling body  71 , a first insulator  80  arranged within, a second insulator  82  arranged on the other end of the coupling body  71 , a contact  74  coaxially arranged in the first insulator  80 , plus an annular collar  90  arranged between the first insulator  80  and the second insulator  81 . The terminal ends on the outer side of the coupling body  71  is furnished with threads  72 ,  73 ; with threads  72  being helically coupled to electronic implements, and threads  73  helically coupled to the connector body  10  (see FIG.  14 ). 
     Represented in the section view of FIG. 10 is an example of the first indicator  80  which is penetrated by a hole  81  whose dia. is dimensioned to just accommodate the contact  74 . On the edge front of the first insulator  80  is formed an annular groove  83 . 
     Represented in the section view of FIG. 11 is an example of the second insulator  82  which has an insert hole  84  to accommodate the central conductor  61  of the cable  60 . 
     Represented in FIG. 12 is an example of the contact  74 , which consists of a contact piece  75 , a flange  76  and an annular shoulder  77 . 
     Represented in FIG. 13A, in a section view, is an example of the annular collar  90  which consists of a second slotted sleeve  91  and a second contact spring  92  that is coaxially arranged therein. In the three-dimensional perspective of FIG. 13B is an example of the second contact spring  92  comprising a plurality of annular rings connected in series, which is formed a slot  93  serving to yield a forcible but resilient clamping force. At one of its ends the second contact spring  90  is united to the annular shoulder  77  of contact  74  (see FIG.  14 ). 
     Represented in the section view of FIG. 14 is an example of the invention with the coupling  70  being locked up with the connector  10 . Referring to the section views of both FIG.  15 A and FIG. 15B, representing altogether one instance whereof the coaxial cable  60  pursuant to FIG. 14 is integrated, the working procedure starts with preparing the free end of the coaxial cable  60 , the next being to slide the connector  10  into the cable  60 , followed, thirdly, by locking up the connector  10  with the coupling  70 . As both the connector  10  and the coupling  70  are being locked to the point of approaching the final positions, the moisture-sealing gasket  79  will be duly compressed to a accomplishing the moisture-hermetic sealing, while one end of the second slotted sleeve  91  engages the annular groove  83 , until the terminal of the central conductor  61  contacts the contact  74 . By then, the central conductor  61  of the cable  60  is inserted in the second contact spring  92 , which is being compressed by both the first insulator  80  and the second insulator  82 . The annular collar  90  will force the second split sleeve  91  to shrink radially, such radial contraction will compel the second contact spring  92  into exerting a flexible but tight clamping force on the central conductor  61  of the coaxial cable  60 , serving to assure a prolonged and secure electric conduction or connection. 
     Summing up the disclosure going thus in the foregoing it can be appreciated that with the central conductor  61  of the coaxial cable  60 , together with the aluminum shield  63  are simultaneously subjected to compressed albeit flexible clamping by the first and the second contact springs  52 ,  92 . A desired optimum electromechanical bonding is consummated sufficient to warrant a prolonged and reliable electric conduction. The connector and the coupling will suffice to modulate both the first and the second contact springs  52 ,  92  to apply tight clamping with respect to the aluminum shielding as well as to the central conductor of the cable. 
     The disclosure going thus far, together with drawings and examples covered hereinbefore, serve but as several embodiments of the invention but by no means to restrict the invention; and it shall be such that all and any modifications, variants, changes made with respect to the invention disclosed herein, to the extent practicable by parties and persons skilled in the art shall nonetheless be deemed within the scope of the invention as defined precisely in the claims following next in the text.