Abstract:
A crimping tool is provided. The crimping tool can crimp coaxial cables of various specifications via the rotation of a rotatable placement seat and/or the adjustment of the depth of a screw rod which is screwed in a screw hole. Further, a holding region is formed at the crimping tool by moving a first holding block and a second holding block towards each other. During an operation, the coaxial cable is wrapped around the holding region. Therefore, the coaxial cable will not move excessively during a crimping operation, resulting in an increase of quality of the crimped coaxial cable.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    1. Field of the Invention 
         [0002]    The invention relates to crimping tools and more particularly to a crimping tool of the type that can crimp coaxial tips that are of various specifications and coaxial cables that are of various specifications. 
         [0003]    2. Description of Related Art 
         [0004]    A coaxial cable is an electrical cable which has two separate conductors that share a common center axis. Coaxial cables are commonly found in such applications as undersea cable, underground cable, cable TV systems, and etc. Due to the wide range of applications with coaxial cable, securely crimping a coaxial connector and a coaxial cable has become an important topic. 
         [0005]    A hand tool and its crimp piece is found in a prior art document which can achieve the goal of crimping together a coaxial connector and a coaxial cable, upon further study, the prior art had the following disadvantages: 
         [0006]    When working with coaxial connector of various specifications, it is required to pull out and rotate follow by re-inserting the assembly for adjustment. This operating mode is extremely inconvenient. Inability to adjust the length of crimp head which is exposed externally; therefore, the hand tool is unable to crimp coaxial connector and coaxial cable of different specifications. The coaxial cable moves during crimping operation; hence, the quality of the crimp between the coaxial connector and the coaxial cable is affected. 
         [0007]    Notwithstanding the prior art, the invention is neither taught nor rendered obvious thereby. 
       SUMMARY OF THE INVENTION 
       [0008]    It is therefore one object of the invention to provide a crimping tool comprising a first crimp handle, a second crimp handle, a crimp handle recovering elastic component, and a rotatable placement seat. Wherein the first crimp handle includes: a guide hole and a through hole. The guide hole is installed at the first crimp handle, while the through hole is installed next to the guide hole. The through hole passes through the first crimp handle. Furthermore, a placement seat positioning slot is installed next to the through hole. In addition, there is a placement seat recovering elastic component installed inside the placement seat positioning slot. A placement seat positioning body is installed on the placement seat recovering elastic component. The second crimp handle includes a movable link and a push rod. The second crimp handle connects to the first crimp handle via a pivot. Furthermore, the second crimp handle connects to the movable link via a pivot, and is connected to the push rod via a pivot. The push rod inserts into the guide hole. One end of the crimp handle recovering elastic component is installed inside the first crimp handle, while the other end of the crimp handle recovering elastic component is installed inside the second crimp handle. 
         [0009]    The rotatable placement seat includes a placement seat protrusion. The orthographic projected area of the rotatable placement seat is larger than the orthographic projected area of the through hole. 
         [0010]    Multiple placement slots having various specifications are installed at one end of the rotatable placement seat. Multiple positioning holes are installed at the other end of the rotatable placement seat. The placement seat protrusion is installed next to those positioning holes. When the placement seat protrusion is placed within the through hole, and the placement seat positioning body lodges into one of the multiple positioning holes. 
         [0011]    In addition, the push rod includes screw hole and a crimp mould. A crimp head is installed at one end of the crimp mould, while a screw rod is installed at the other end of the crimp head. The crimp head has a flat surface. A convex body is installed at the flat surface; moreover, a depression is disposed at the convex body. There is a screw hole disposed at the push rod so the screw rod can screw into the screw hole. 
         [0012]    A rotatable placement seat includes a first holding block and a second holding block. The first holding block is pivot at the rotatable placement seat. The second holding block is pivot at the rotatable placement seat. Furthermore, it is situated next to the first holding block. Through the rotation of the first and second holding blocks, both the first and second holding blocks approach closer to each other and form a holding region. 
         [0013]    An aspect of the invention is to offer a crimping tool which crimps coaxial cables of different specifications via an anchor point whereby rotating the aforementioned rotatable placement seat to a predefined placement slot. 
         [0014]    Another aspect of the invention is to offer a crimping tool which allows for rotation of the screw rod at the crimp mould to be driven by the rotation of the crimp mould; therefore, provides adjustment to the depth of the screw rod inside the screw hole. The net result is the length adjustment of the crimp head of the crimp mould that exposes outside the screw hole; hence, different coaxial connector of various specifications can be crimped. 
         [0015]    Still another object of the invention is to offer a crimping tool. The crimping tool forms a holding region by moving the first holding block and the second holding block towards each other. The holding region wraps around a coaxial cable. Therefore, the coaxial cable will not move excessively during crimping operation, resulting in increased crimp quality of the coaxial cable. The crimp modes of the coaxial cable and the coaxial connector are as follows: 
         [0016]    Place the un-crimped coaxial connector and coaxial cable into the crimping tool as shown in  FIGS. 10-12 , an F-type coaxial connector and a RG11 coaxial cable. Next, press and close the first crimp handle and the second crimp handle as shown in  FIGS. 26 and 27 . The coaxial connector and the coaxial cable are now crimped as shown in  FIG. 13 , the crimped F-type coaxial connector and RG11 coaxial cable. 
         [0017]    Place the un-crimped coaxial connector and coaxial cable into the crimping tool as shown in  FIGS. 14-16  to form a BNC-type coaxial connector and a coaxial cable. Next, press and close the first crimp handle and the second crimp handle as shown in  FIGS. 26-27 . The coaxial connector and the coaxial cable are now crimped as shown in  FIG. 17  to form the crimped BNC-type coaxial connector and coaxial cable. 
         [0018]    Place the un-crimped coaxial connector and coaxial cable into the crimping tool as shown in  FIGS. 18-20 , a F-type coaxial connector and a coaxial cable. Next, press and close the first crimp handle and the second crimp handle as shown in  FIGS. 26-27 . The coaxial connector and the coaxial cable are now crimped as shown in  FIG. 17 , the crimped BNC type coaxial connector and coaxial cable. 
         [0019]    Place the un-crimped coaxial connector and coaxial cable into the crimping tool as shown in  FIGS. 22-24  to form a RCA-type coaxial connector and a coaxial cable. Next, press and close the first crimp handle and the second crimp handle as shown in  FIGS. 26 and 27 . The coaxial connector and the coaxial cable are now crimped as shown in  FIG. 25  to form the crimped RCA-type coaxial connector and coaxial cable. 
         [0020]    The F-type connector and RG11 coaxial cable, the BNC-type connector and coaxial cable, and the RCA-type connector and coaxial cable are for reference only. Therefore, the actual operation of the invention is not limited by the aforementioned crimp modes. 
         [0021]    The above and other objects, features and advantages of the invention will become apparent from the following detailed description taken with the accompanying drawings. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0022]      FIG. 1  is an exploded view of the crimping tool of the invention; 
           [0023]      FIG. 2  is the crimp mould of the crimping tool; 
           [0024]      FIG. 3  is the rotatable placement seat of the crimping tool; 
           [0025]      FIG. 4  is a cutaway view of the crimping tool; 
           [0026]      FIG. 5  is an enlarged view of the rotatable placement seat of the crimping tool; 
           [0027]      FIG. 6  shows the first holding block and the second holding block before they are spread opened; 
           [0028]      FIG. 7  shows the first holding block and the second holding block after they are spread opened; 
           [0029]      FIG. 8  shows the rotatable placement seat of the crimping tool and the rotatable placement seat before it is rotated; 
           [0030]      FIG. 9  shows the rotatable placement seat of the crimping tool and the rotatable placement seat after it has been rotated; 
           [0031]      FIG. 10  shows F-type coaxial connector and RG11 coaxial cable before they are crimped; 
           [0032]      FIG. 11  is an exploded view of the F-type coaxial connector and RG11 coaxial being placed inside the crimping tool; 
           [0033]      FIG. 12  is a cutaway view of the F-type coaxial connector and the RG11 cable while they are placed inside the crimping tool; 
           [0034]      FIG. 13  shows the F-type coaxial connector and the RG11 coaxial cable crimped together; 
           [0035]      FIG. 14  shows BNC-type coaxial connector and coaxial cable before they are crimped. 
           [0036]      FIG. 15  is an exploded view of the BNC-type coaxial connector and the coaxial cable being placed inside the crimping tool; 
           [0037]      FIG. 16  is a cutaway view of the BNC-type coaxial connector and the coaxial cable while they are placed inside the crimping tool; 
           [0038]      FIG. 17  shows the BNC-type coaxial connector and the coaxial cable crimped together; 
           [0039]      FIG. 18  shows F-type coaxial connector and coaxial cable before they are crimped; 
           [0040]      FIG. 19  is an exploded view of the F-type coaxial connector and the coaxial cable being placed inside the crimping tool; 
           [0041]      FIG. 20  is a cutaway view of the F-type coaxial connector and the coaxial cable while they are placed inside the crimping tool; 
           [0042]      FIG. 21  shows the F-type coaxial connector and the coaxial cable crimped together; 
           [0043]      FIG. 22  shows RCA-type coaxial connector and coaxial cable before they are crimped; 
           [0044]      FIG. 23  is an exploded view of the RCA-type coaxial connector and the coaxial cable being placed inside the crimping tool; 
           [0045]      FIG. 24  is a cutaway view of the RCA-type coaxial connector and the coaxial cable while they are placed inside the crimping tool; 
           [0046]      FIG. 25  shows the RCA-type coaxial connector and the coaxial cable crimped together; 
           [0047]      FIG. 26  shows the crimping tool having the first crimp handle and the second crimp handle closed together; and 
           [0048]      FIG. 27  is a cutaway view of the crimping tool having the first crimp handle and the second crimp handle closed together. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0049]    Referring to  FIGS. 1 to 27 , a crimping tool  900  in accordance with the invention is shown. The crimping tool  900  is utilized to crimp the coaxial connector  910  and the coaxial cable  920 . The crimping tool  900  includes a first crimp handle  10 , a second crimp handle  20 , a crimp handle recovering elastic component  30 , and a rotatable placement seat  40 . 
         [0050]    The first crimp handle  10  includes a guide hole  11  and a through hole  13 . The guide hole  11  is installed at the first crimp handle  10 , while the through hole  13  is installed next to the guide hole  11 . The through hole  13  passes through the first crimp handle  10 . Furthermore, a placement seat positioning slot  131  is installed next to the through hole  13 . In addition, there is a placement seat recovering elastic component  132  installed inside the placement seat positioning slot  131 . A placement seat positioning body  133  is installed on the placement seat recovering elastic component  132 . 
         [0051]    The second crimp handle  20  includes a movable link  21  and a push rod  12 . The second crimp handle  20  connects to the first crimp handle  10  via a pivot. Furthermore, the second crimp handle  20  connects to the movable link  21  via a pivot, and the second crimp handle  20  is also connected to the push rod  12  via a pivot. The push rod  12  inserts into the guide hole  11 . One end of the crimp handle recovering elastic component  30  is installed inside the first crimp handle  10 , while the other end of the crimp handle recovering elastic component  30  is installed inside the second crimp handle  20 . Therefore, when pressure is applied at the second crimp handle  20 , a downward pressure will compress the crimp handle recovering elastic component  30 . The angle between the first crimp handle  10  and the second crimp handle  20  will become smaller. The second crimp handle  20  will apply force to the movable link  21  which will push the push rod  12  to pass through the guide hole  11  and push the push rod  12  to move forward. Subsequently, when force is removed from the second crimp handle  20 , the crimp handle recovering elastic component  30  will push the first crimp handle  10  and the second crimp handle  20  back to their original positions. 
         [0052]    The rotatable placement seat  40  includes a placement seat protrusion  41 . The orthographic projected area of the rotatable placement seat  40  is larger than the orthographic projected area of the through hole  13 . Therefore, the rotatable placement seat  40  will not fall out of the through hole  13 . Multiple placement slot  46  having various specifications are installed at one end of the rotatable placement seat  40 . Multiple positioning hole  47  are installed at the other end of the rotatable placement seat  40 . The placement seat protrusion  41  is installed next to those positioning hole  47 . When the placement seat protrusion  41  is placed inside the through hole  13 , the placement seat positioning body  133  lodges into one of the multiple positioning hole  47 . Therefore, when the rotatable placement seat  40  rotates, the placement seat positioning body  133  will lodge into different positioning hole  47  and achieve the goal of having the rotatable placement seat  40  to rotate and position inside the through hole  13 . 
         [0053]    Furthermore, the placement seat protrusion  41  has a ring shaped slot  411 . When the placement seat protrusion  41  is placed with the through hole  13 , the ring shaped slot  411  is situated at the outside of the through hole  13  and is lodged by a lodge ring  412 . The orthographic projection area of the ring shaped slot  411  after it is lodged by the lodge ring  412  is larger than the orthographic projection area of the through hole  13 . Since the orthographic projection area of the placement seat protrusion  41  is greater than the orthographic projection area of the through hole  13  and the placement seat protrusion  41  is lodged by the lodge ring  412 , the placement seat protrusion  41  will not fall through neither end of the through hole  13 . 
         [0054]    Furthermore, the push rod  12  includes screw hole  121  and a crimp mould  122 . A crimp head  1221  is installed at one end of the crimp mould  122 , while a screw rod  1222  is installed at the other end of the crimp head  1221 . The crimp head  1221  has a flat surface  1221 A. A convex body  1221 B is installed at the flat surface  1221 A; moreover, a depression  1221 C is disposed at the convex body  1221 B. There is a screw hole  121  disposed at the push rod  12  so the screw rod  1222  can screw into the screw hole  121 . Therefore, crimping coaxial connectors of various specifications is made possible by disposing crimp mould  122  via the push rod  12 . Furthermore, the screw rod  1222  on the crimp mould  122  is rotated via the rotation of crimp mould  122 . Therefore, adjusting the depth of screw rod  1222  being screwed into the screw hole  121  changes the length of the crimp head  1221  of the crimp mould  122  that exposes outside the screw hole  121 . As a result, the crimping tool crimps coaxial connectors and coaxial cables of various specifications. 
         [0055]    Furthermore, a rotatable placement seat  40  includes a first holding block  42  and a second holding block  43 . The first holding block  42  is pivot at the rotatable placement seat  40 . The second holding block  43  is pivot at the rotatable placement seat  40 . Furthermore, it is situated next to the first holding block  42 . Through the rotation of the first holding block  42  and second holding block  43 , both first holding block  42  and second holding block  43  approach closer to each other and form a holding region  48 . Since the coaxial cable  920  is wrapped around by the holding region  48 , the coaxial cable  920  will not move excessively during operation with the use of the crimping tool  900 . Hence, the crimp quality of the coaxial cable  920  is increased. 
         [0056]    Furthermore, a protruding block  421  is disposed at the first holding block  42 . A notch  431  is disposed at the second holding block  43 . Moreover, protruding block  421  is placed within the notch  431 . Through the rotation of the first holding block  42 , the first holding block  42  leads the protruding block  421  to rotate, which in turns leads the notch  431  to rotate, which in turns leads the second holding block  43  to rotate. 
         [0057]    Moreover, rotating the second holding block  43  leads the protruding block  421  to rotate. The rotation of the protruding block  421  leads the protruding block  421  to rotate, which in turns leads to the rotation of first holding block  42 . Therefore, it is sufficient to only rotate the first holding block  42  to lead the second holding block  43  to rotate. In other words, the new and simplified operating mode only requires one hand to complete the crimp operation. 
         [0058]    Furthermore, a clamp recovering slot  44  is disposed within a rotatable placement seat  40 ; in addition, a clamp recovering elastic component  45  is disposed within the clamp recovering slot  44 . A clamp recovering block  422  is disposed at the first holding block  42 ; moreover, the clamp recovering block  422  supplies force against the clamp recovering elastic component  45 . Therefore, after force is applied to rotate the first holding block  42 , the clamp recovering elastic component  45  receives downward pressure. 
         [0059]    Subsequently, when force is removed, the clamp recovering elastic component  45  will restore to its original position which will push the first holding block  42  to rotate gradually, which further leads the second holding block  43  to rotate. Therefore, a user can simply complete the operation using only a single hand and apply force to allow the first holding block  42  and the second holding block  43  to spread wide, place in the coaxial cable  920 , follow by removing applied force in forming a holding region  48  by allowing the first holding block  42  and the second holding block  43  to approach closer to each other. 
         [0060]    A first exemplary example of the crimping tool implementation is detailed below. 
         [0061]    Rotate the rotatable placement seat  46  until it arrives at the positioning point of the placement slot according to a pre-defined specification. Place a coaxial connector  910  and a coaxial cable  920  at the placement seat  46 . After applying pressure at the second crimp handle  20 , the applied pressure will act downward onto the crimp handle recovering elastic component  30 . Consequently, the angle between the first crimp handle  10  and the second crimp handle  20  will become smaller. The second crimp handle  20  forces the movable link which pushes the push rod  12  to pass into the guide hole  11 . As a result, the push rod  12  is pushed forward to crimp the coaxial connector  910  and the coaxial cable  920  securely together. 
         [0062]    A second exemplary example of the crimping tool implementation is detailed below. 
         [0063]    Rotate the crimp mould  122  which in turns rotates the screw rod  1222  of the crimp mould  122 . The rotation causes the depth adjustment of the screw rod  1222  while inside the screw hole  121 ; hence, the length of the crimp head  1221  of the crimp mould  122  that is exposed outside the screw hole  121  can be adjusted. Rotate the rotatable placement seat until it arrives at the positioning point of the placement slot  46  according to a pre-defined specification. Place the coaxial connector  910  and the coaxial cable  920  at the placement slot  46 . After applying pressure at the second crimp handle  20 , the applied pressure will act downward onto the crimp handle recovering elastic component  30 . Consequently, the angle between the first crimp handle  10  and the second crimp handle  20  will become smaller. The second crimp handle  20  forces the movable link which pushes the push rod  12  to pass into the guide hole  11 . As a result, the push rod  12  is pushed forward to crimp the coaxial connector  910  and the coaxial cable  920  securely together. 
         [0064]    While the invention has been described in terms of preferred embodiments, those skilled in the art will recognize that the invention can be practiced with modifications within the spirit and scope of the appended claims.