Patent Publication Number: US-6698090-B1

Title: Structure of terminal connector pliers

Description:
BACKGROUND OF THE INVENTION 
     (a) Technical Field of the Invention 
     The present invention relates to pliers, and in particular, an improved structure of terminal connector pliers to connect by pressing the terminal connector positioned between a sliding seat and a connection seat so that a conductive wire is connected to the terminal connector. 
     (b) Description of the Prior Art 
     Co-axial cables have been widely used, as cable TV and Internet services have been a trend recently. Connecting device or tool for terminal connector for these co-axial cables comprises two handles having one end each being a holding region and the other end being a pressing region and the pressing of the holding region urging two pressing regions to close toward each other or apart from one another; a module having a mold seat and a replaceable mold and the mold seat being mounted to the pressing region and a cavity being formed in the mold, the diameter of the cavity being substantially the same as the external diameter of the mounting element, and the end portion of the cavity being provided with a protruded edge spaced apart axially with the cavity, and the diameter of the protruded edge being substantially the same as the external diameter of the cable; a push rod spaced apart from the module so as to support the connector and the end thereof and a base seat mounted to the pressing regions of the two handles and having a push rod to move in linear direction to the support seat or away from the support seat. In application when the two handles are closed to one another, the front end of the handle (i.e. the connector and one end of the cable) is not pressed against the connector in a linear direction but in an arch-shaped direction. Thus the path of the pressing process of the device is not parallel to the connector. Thus when the user applies the device, the pressing process is not smooth and the operation is rather laborious. This is the drawback of the conventional device for connection of co-axial cable to a terminal connector. Accordingly, it is an object of the present invention to provide and improved structure of terminal connector pliers, which can mitigate the above-mentioned drawbacks. 
     SUMMARY OF THE INVENTION 
     Accordingly, it is an object of the present invention to provide an improved structure of terminal connector pliers, wherein the pliers comprises a connection seat having a wire slot at the top end thereof; a first pliers body being mounted with a spring at the top end thereof, and elastically and pivotally connected to a first side of the connection seat; a second pliers body being mounted with a spring at the top end thereof, and elastically and pivotally connected to a second side of the connection seat; a sliding seat slidably connected to the connection seat and a top pressing region being defined at the top end, and the top pressing region being projected onto the wire slot; a first connection rod having a first end pivotally mounted onto a first pliers body and having a second end pivotally connected to the first side of the sliding seat; a second connection end having a first end pivotally mounted onto a second pliers body and having a second end pivotally connected to the second side of the sliding seat; thereby when the first and the second pliers bodies are combined, the first and the connection rod are urged to cause the sliding seat on the connection seat moves in linear direction so that a terminal connector located between the sliding seat and the connection seat is relatively pressed with respect to the top and bottom end so that a conductive wire is fastened to the terminal connection. 
     Another object of the present invention is to provide an improved structure of terminal connector pliers, wherein the wire slot is mounted with a position plate having a clipping space at the center thereof which forms a connection with the top side of the wire slot, and an internally extended spring plate is provided at the position plate and the extended end section of the spring plate is provided with an internally extended protruded edge such that the terminal connector of a co-axial cable from the wire slot is clipped and positioned at the spring plate of the position plate. 
     A further object of the present invention is to provide an improved structure of terminal connector pliers, wherein at least an engaging block is provided to the middle section of the first and the second pliers bodies extended outward from the connection seat, the engaging block is provided with a plurality of screw holes allowing screw mounting of all types of screws. 
     The foregoing object and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts. 
     Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is an exploded perspective view of an improved structure of terminal connector pliers of the present invention. 
     FIG. 2 is a schematic sectional view of an improved structure of terminal connector pliers of the present invention. 
     FIG. 3 is a sectional view of an improved structure of terminal connector pliers of the present invention, wherein the first and the second pliers bodies are extended. 
     FIG. 4 is a sectional view of an improved structure of terminal connector pliers of the present invention, wherein the first and the second pliers bodies are retracted. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     The following descriptions are of exemplary embodiments only, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. Various changes to the described embodiments may be made in the function and arrangement of the elements described without departing from the scope of the invention as set forth in the appended claims. 
     Referring to FIGS. 1 and 2, there is shown an improved structure of terminal connector pliers comprising a connection seat  1 , a first pliers body  2 , a second pliers body  3  and a sliding seat  4 . The connection seat  1  contains a top plate portion  11  having two sides respectively downwardly connected to a sideboard  12 . The other side of the top plate portion  11  is provided with a wire slot  10  for mounting with a position plate  14 . The center of the position plate  14  is provided with a clipping space  141  which can be connected to the topside of the wire slot  10  to form a connection. The position plate  14  located at the two sides of the clipping space  141  has a spring  142  extended internally and the extended end portion of the individual spring plates  142  has a protruded edge  143  extended internally. The two sides of the position plate  14  are extended externally and the center of the extended section has a hole  144  for the mounting of a bolt  145  with nut  146  to the connection seat  1 . 
     The connection seat  1  located between two side plates  12  is defined into a sliding space  120  to accommodate the sliding seat  4  for sliding motion. The two sides of the side plate  12  are provided with two parallel sliding slots  121  for the mounting of pivotal pegs  51 ,  61  of the first end of the first and the second connection rods  5 , 6  to be slidably therein. The top end of the first pliers body  2  is provided with a spring  20  elastically connected to the first side of the connection seat  1 . The top end of the second pliers body  3  is provided with a spring  30  elastically and pivotally connected to the second side of the connection seat  1 . 
     The sliding seat  4  is slidably mounted to the connection seat  1  including a body  41 . There are two pivotal holes  411  on the body  41  for mounting with a pivotal peg  51 , 61  so as to respectively and pivotally connected to the first end of the first and the second connection rods  5 ,  6 . The top face of the body  41  has a screw hole  412  and a top pressing head  42  having the top section being defined a head portion  421  to connect to the bottom section  76  of the terminal connector  7 . The bottom section of the pressing head  42  is a screw rod section  422  to connect with a packing female screw  423  to screw to the screw hole  412  of the body  41 . 
     Thereby, the female screw  423  fastens the top pressing head  42  to the top face of the body  41 , and the top pressing head  42  (due to the screw rod section  422  being mounted to the body  41 ) can rotatably adjust the distance between the top end of the top pressing head  42  and the top plate section  11  of the connection seat. The first end of the first connection rod  5  is pivotally connected to the first pliers body  2  and the second end is pivotally connected to the first lateral side of the sliding seat  4 . The first end of the second connection rod  6  is connected to the second pliers body  3 , and the second end is pivotally connected to the second side of the sliding seat  4 . Thus, when the first and the second pliers body  2 ,  3  are combined together, the first and the second connection rods  5 ,  6  are urged to linearly slide to the sliding seat  4 . 
     The hollow section of the middle section of the first pliers body  2  (or the second pliers body  3 ) is provided with an engaging block  23  mounted with a peg  24 . There are a plurality of screw holes  231 ,  232  on the engaging block  23  to fit and position components of various specification, (for instance, the top pressing head  43 ,  44 ), allowing portability. 
     FIGS. 3 and 4 respectively show the opening and retracting of the pliers. As shown in FIG. 2, the bottom section of the top plate portion of the connection seat can be connected with a base plate  13  of a hard material, and one side of the base plate  13  is a slot  131 , which corresponds to the wire slot  10  to accommodate a conductive wire L. Thus, the top end of the terminal connector  7  is avoided from direct pressing against the top plate portion  11  of the connection plate so as to improve the longevity of the pliers. 
     The inner edge of the second pliers body  3  is a platform  31 , and a cutter  21  is mounted corresponding to the first pliers body  2  to allow the combination of the first and the second pliers body  2 ,  3  and the conductive wire L is cut by means of the platform  31  and the cutter  21 . The first pliers body  2  can be mounted with a position ratchet board  22  and the inner side of the second plies body  3  is pivotally mounted with a ratchet finger  32  so that when the first and the second pliers body  2 ,  3  are combined, the ratchet finger  32  will block in one direction the ratchet teeth of the ratchet board  22 . 
     The present pliers includes at least a position and holding plate  8 , pegs  51 ,  56  pivotally connected to the first end of the first and second connection rod  5 ,  6  and the two lateral sides of the holding plate  8  respectively extended a blocking wall  81  to lean against one of the lateral side plate  12  of the two board edge  122  of the connection seat  1  such that when the first and second connection rods  5 ,  6  push the sliding seat  4 , the sliding seat  4  can be stably moved so that the terminal connector  7  between the sliding seat  4  and the connection seat  1  are squeezed and the conductive wire L is tightly engaged to the terminal connector  7 . 
     In application, the conductive wire L is placed to the connector  7 , and the connector  7  is placed between onto the base plate  13  and the top pressing head  42 , then the first and the second pliers body  2 ,  3  are combined. At this instance, the first and the second connection rods  5 ,  6  cause the sliding seat  4  to slide in linear direction to the top plate section  11 , and the top and bottom section of the connector  7  engage the conductive wire L. In accordance with the present invention, the first and the second connection rods  5 ,  6  simultaneously move the sliding seat  4 , therefore, the movement of the sliding seat  4  is smooth and stable, and the connection of conductive wire L with the connector  7  is smooth and convenient. 
     It will be understood that each of the elements described above, or two or more together may also find a useful application in other types of methods differing from the type described above. 
     While certain novel features of this invention have been shown and described and are pointed out in the annexed claim, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing in any way from the spirit of the present invention.